Materiały źródłowe

• #1 Type 1 Diabetes: Causes, Symptoms, Complications & Treatment

  https://my.clevelandclinic.org/health/diseases/21500-type-1-diabetes

  Type 1 diabetes is a chronic (life-long) autoimmune disease that prevents your pancreas from making insulin. Both children and adults can be diagnosed with Type 1 diabetes. […] If you or your child has these symptoms, its essential to see your healthcare provider and ask to be tested for Type 1 diabetes as soon as possible. The sooner youre diagnosed, the better. […] Type 1 diabetes is relatively simple to diagnose. If you or your child has symptoms of Type 1 diabetes, your healthcare provider will order the following tests: […] Your healthcare provider uses a blood glucose test to check the amount of sugar in your blood. […] If blood glucose test results indicate that you have diabetes, your healthcare provider may do an A1c test. This measures your average blood sugar levels over three months.

• #1 Type 1 Diabetes Mellitus Workup: Laboratory Studies, Tests to Differentiate Type 1 from Type 2 Diabetes

  https://emedicine.medscape.com/article/117739-workup

  Patients with type 1 DM typically present with symptoms of uncontrolled hyperglycemia (eg, polyuria, polydipsia, polyphagia). In such cases, the diagnosis of DM can be confirmed with a random (nonfasting) plasma glucose concentration of 200 mg/dL or a fasting plasma glucose concentration of 126 mg/dL (6.99 mmol/L) or higher. […] A fingerstick glucose test is appropriate in the emergency department (ED) for virtually all patients with diabetes. All fingerstick capillary glucose levels must be confirmed in serum or plasma to make the diagnosis. […] HbA1c is the stable product of nonenzymatic irreversible glycation of the beta chain of hemoglobin by plasma glucose and is formed at rates that increase with increasing plasma glucose levels. HbA1c levels provide an estimate of plasma glucose levels during the preceding 1-3 months.

• #1 Patient education: Type 1 diabetes: Overview (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/type-1-diabetes-overview-beyond-the-basics

  Type 1 diabetes usually develops when the immune system destroys the insulin-producing cells (called the beta cells) in the pancreas. This is called an autoimmune response. The cause of this abnormal immune response is being studied. […] The diagnosis of diabetes is based on your symptoms and blood tests. […] Most people with type 1 diabetes have symptoms of high blood sugar levels (hyperglycemia) at the time of diagnosis. These include: Excessive thirst, Feeling tired, Needing to urinate frequently, Blurred vision, Feeling hungry, Unintentional weight loss, Frequent yeast infections or urinary tract infections, Slowly healing wounds. […] Simple, inexpensive blood tests are used to diagnose diabetes. Having a higher than normal blood sugar, as well as the symptoms described above, usually means that you have diabetes.

• #1 Testing for Type 1 Diabetes: Getting a Type 1 Diabetes Diagnosis

  https://www.health.com/type-1-diabetes-diagnosis-7479818

  Some people experience a delay in getting a type 1 diabetes diagnosis. As a result, the first symptoms they present with are signs of a diabetes complication called diabetic ketoacidosis (DKA). […] If your healthcare provider suspects diabetes based on your symptoms, they will have you take one or more blood tests to help confirm a diagnosis. […] A glucose blood test requires a blood sample, usually taken as a blood drawn from a vein or a finger stick. […] A ketone test is done using a urine or blood sample. This test detects the levels of ketone bodies produced through ketoacidosis. […] Once your glucose test results indicate diabetes, your healthcare provider may order antibody testing that is specific to type 1 diabetes. […] Results from autoantibody and glucose tests, along with your symptoms, help your healthcare provider form a type 1 diabetes diagnosis.

• #1 Type 1 diabetes in children – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/type-1-diabetes-in-children/diagnosis-treatment/drc-20355312

  There are several blood tests for type 1 diabetes in children. These tests are used to diagnose diabetes and to monitor diabetes management: […] Random blood sugar test. This is the primary screening test for type 1 diabetes. A blood sample is taken at a random time. A blood sugar level of 200 milligrams per deciliter (mg/dL), or 11.1 millimoles per liter (mmol/L), or higher, along with symptoms, suggests diabetes. […] Glycated hemoglobin (A1C) test. This test indicates your child’s average blood sugar level for the past 3 months. An A1C level of 6.5% or higher on two separate tests indicates diabetes. […] Fasting blood sugar test. A blood sample is taken after your child hasn’t eaten (fasted) for at least 8 hours or overnight. A fasting blood sugar level of 126 mg/dL (7.0 mmol/L) or higher suggests type 1 diabetes.

• #1 Diabetes Diagnosis & Tests | ADA

  https://diabetes.org/about-diabetes/diagnosis

  There are several ways to diagnose diabetes. Each way usually needs to be repeated on a second day to diagnose diabetes. […] If your doctor determines that your blood glucose (blood sugar) level is very high, or if you have classic symptoms of high blood glucose in addition to one positive test, your doctor may not require a second test to diagnose diabetes. […] Diabetes is diagnosed at an A1C of greater than or equal to 6.5%. […] Diabetes is diagnosed at fasting blood glucose of greater than or equal to 126 mg/dl. […] Diabetes is diagnosed at two-hour blood glucose of greater than or equal to 200 mg/dl. […] Diabetes is diagnosed at blood glucose of greater than or equal to 200 mg/dl.

• #1 Type 1 diabetes in children – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/type-1-diabetes-in-children/diagnosis-treatment/drc-20355312

  If blood sugar testing indicates diabetes, your health care provider may recommend additional tests to distinguish between type 1 diabetes and type 2 diabetes because treatment strategies differ by type. Additional tests include blood tests to check for antibodies that are common in type 1 diabetes. […] Your child’s primary care provider will probably make the initial diagnosis of type 1 diabetes. Hospitalization may be needed to stabilize your child’s blood sugar levels. […] Your child’s long-term diabetes care will likely be handled by a pediatric endocrinologist. Your child’s health care team also generally includes a certified diabetes care and education specialist, a registered dietitian, and a social worker.

• #1 Diabetes Tests & Diagnosis – NIDDK

  https://www.niddk.nih.gov/health-information/diabetes/overview/tests-diagnosis

  Your doctor can diagnose diabetes, prediabetes, and gestational diabetes using blood tests. The blood tests show if your blood glucose level, also called blood sugar, is higher than the range that is healthy for you. Blood tests can also help identify the type of diabetes you have. […] Doctors often diagnose type 1 diabetes in children and young adults when they have diabetes symptoms, such as feeling thirsty and having to urinate more often, or if they may have diabetic ketoacidosis. […] Type 1 diabetes can run in families. A study called TrialNet offers free testing to relatives of people with type 1 diabetes, even if the relatives don’t have symptoms. […] If you have diabetes, your doctor may look for certain autoantibodies to see if your diabetes is type 1. Autoantibodies are proteins in your immune system that mistakenly attack your healthy tissues and cells. A health care professional will take a sample of your blood for this test. If autoantibodies for diabetes are found in your blood, you may have type 1 diabetes.

• #1 Diabetes Testing | Diabetes | CDC

  https://www.cdc.gov/diabetes/diabetes-testing/index.html

  If your doctor thinks you have type 1 diabetes, your blood may also be tested for autoantibodies. These substances show your body is attacking itself and are often found with type 1 diabetes but not with type 2. […] You may have your urine tested for ketones. Ketones are produced when your body burns fat for energy. Having ketones in your urine indicates you have type 1 diabetes instead of type 2.

• #1 Diabetes Mellitus: Diagnosis and Screening | AAFP

  https://www.aafp.org/pubs/afp/issues/2010/0401/p863.html

  C peptide is linked to insulin to form proinsulin and reflects the amount of endogenous insulin. Patients with type 1 diabetes have low C peptide levels because of low levels of endogenous insulin and beta cell function. […] Antibody testing is limited by availability, cost, and predictive value, especially in black and Asian patients.

• #1 Type 1 Diabetes – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK507713/

  Screening for T1D antibodies and family history are important in confirming the diagnosis. […] GAD65 should be the initial antibody tested when T1D in adults is suspected. IA2 or ZNT8 should be measured if GAD65 testing is negative or unavailable. […] In the absence of unequivocal hyperglycemia, the diagnosis is confirmed based on 2 abnormal test results. Once the diagnosis of diabetes is confirmed, distinguishing between T1D and other forms of diabetes, mainly T2D, is critical. […] Most patients with T1D have 1 or more positive T1D antibodies at the time of diagnosis.

• #1 Diagnosing Type 1 Diabetes In Children | London Diabetes

  https://londondiabetes.com/type-1/children/diagnosing-type-1-diabetes-in-children/

  Diagnosing type 1 diabetes in children […] If your child is displaying signs and symptoms which could indicate type 1 diabetes, there are a number of tests that are used to make a diagnosis. […] He or she could be required to take several blood tests, including: Random blood sugar test – the primary screening test for the condition, involving a blood sample being taken at a random time. If the blood sugar level is found to be higher than 11.1 mmol/L or 200 mg/dL, this suggests diabetes […] Fasting blood sugar test – this is a test that involves a blood sample taken after your child has fasted overnight. If the blood sugar level is found to be higher than 7.0 mmol/L or 126 mg/dL this suggests type 1 diabetes […] A1C (glycated haemoglobin) test – this is a test to track the average of your child’s blood sugar level over the previous three months. If the A1C level is found to be higher than 6.5 percent in two different tests, this is an indication of diabetes […] There are additional tests that could be used to determine whether your child has type 1 or 2 diabetes, these can include: Urine test – to check for ketones that suggest type 1 rather than type 2 diabetes. […] Additional blood tests – to check for antibodies that are normal in type 1 diabetes.

• #1 Type 1 Diabetes | Boston Children’s Hospital

  https://www.childrenshospital.org/conditions/type-1-diabetes

  Your child may need to have blood drawn more than once so the test results can be confirmed with a second test on a different day. Distinguishing between type 1 and type 2 diabetes in children can sometimes be difficult, and your child’s doctor may need to do additional testing or monitor your child for some time before the type of diabetes can be confirmed.

• #1 Type 1 Diabetes Mellitus Workup: Laboratory Studies, Tests to Differentiate Type 1 from Type 2 Diabetes

  https://emedicine.medscape.com/article/117739-workup

  Consequently, since 2010 the ADA has included an HbA1c level of 6.5% or higher as a criterion for diabetes diagnosis, with confirmation from repeat testing (unless clinical symptoms are present and the glucose level exceeds 200 mg/dL). […] Screening for type 1 DM in asymptomatic low-risk individuals is not recommended. However, in patients at high risk (eg, those who have first-degree relatives with type 1 DM), it may be appropriate to perform annual screening for anti-islet antibodies before the age 10 years, along with 1 additional screening during adolescence. […] A consensus statement published in 2021 by the ADA and the EASD provided an algorithm meant to aid in avoiding the misdiagnosis of adult-onset type 1 DM. In the algorithm, which was devised using data from White European populations, an islet autoantibody test is first carried out; if positive, type 1 diabetes is diagnosed.

• #1 Type 1 Diabetes – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK507713/

  Type 1 diabetes is a disease involving the immune-mediated destruction of insulin-producing pancreatic -cells, leading to insulin deficiency. […] Individuals with type 1 diabetes require lifelong exogenous insulin replacement. […] Diabetes self-management education and support should include training on blood glucose monitoring, insulin administration, ketone testing when indicated, nutrition education, methods to avoid and treat hypoglycemia, and sick day rules. […] The American Diabetes Association (ADA) recommends that first- and second-degree relatives of individuals with T1D be screened and offered T1D autoantibody testing. […] Testing for autoantibodies to pancreatic -cell autoantigens is important in confirming the diagnosis and distinguishing T1D from other forms of diabetes, mainly type 2 diabetes (T2D).

• #1 Understanding Type 1 Diabetes | ADA

  https://diabetes.org/about-diabetes/type-1

  Testing, coupled with education about diabetes symptoms and close follow-up, has been shown to enable earlier diagnosis and to prevent diabetes ketoacidosis. […] Early detection and treatment of diabetes can decrease the risk of developing complications both at the time of diagnosis and in the future. By knowing and recognizing the symptoms above, you can learn if you have type 1 diabetes early and avoid complications, like diabetic ketoacidosis (DKA). […] If you have a family history of type 1 diabetes, your health care provider may suggest screening for type 1 diabetes. They will order a blood test to measure your islet autoantibodies. […] It is important to be sure that your diagnosis is correct because that will determine your treatment plan, allowing you manage your diabetes and prevent its complications. […] Read our Standards of Care in Diabetes2024 recommendations on type 1 diabetes screening and diagnosis.

• #1 Type 1 diabetes staging classification opens door for intervention | Type 1 Diabetes TrialNet

  https://www.trialnet.org/events-news/blog/type-1-diabetes-staging-classification-opens-door-intervention

  For most people, the onset of type 1 diabetes seems to occur suddenly, often resulting in a trip to the emergency room with life-threatening complications such as diabetic ketoacidosis (DKA). […] In Diabetes Care, the JDRF, American Diabetes Association (ADA), and Endocrine Society recommended adoption of a new type 1 diabetes staging classification. […] Type 1 diabetes can now be most accurately understood as a disease that progresses in three distinct stages. […] The new staging classification is vital to understanding how type 1 progresses. Equally important is TrialNet’s ability to diagnose the disease in its earliest stages, allowing for prompt intervention. […] Clinical research supports the usefulness of diagnosing type 1 diabetes early before beta cell loss advances to stage 3.

• #1 Stages of Type 1 | Emory School of Medicine

  https://med.emory.edu/departments/pediatrics/divisions/endocrinology/research/what-is-diabetes/type-1-stages.html

  Stage 3 is when clinical diagnosis typically takes place. By this time, there is significant beta cell loss and symptoms of type 1 diabetes are usually present. […] Clinical T1D diagnosis + significant beta cell loss + Symptoms of T1D

• #1 Type 1 diabetes | Quest Diagnostics

  https://www.questdiagnostics.com/healthcare-professionals/about-our-tests/diabetes-pre-diabetes/type-1

  Type 1 diabetes (T1D), or autoimmune diabetes, results from the immune destruction of pancreatic insulin-producing beta cells. T1D is commonly diagnosed in pediatric patients at 2 distinct age ranges, with peaks of diagnosis occurring at ages 46 and 10141yet 25% to 50% of cases are diagnosed during adulthood. The most frequent clinical presentation consists of increased thirst, frequent urination, and weight loss, but up to 30% of all children with T1D present with diabetic ketoacidosis (DKA). DKA is a medical emergency that requires ICU hospitalization and predisposes to poorer health consequences, including higher lifetime HbA1C and adverse impacts on memory and intelligence quotient. The introduction of islet autoantibody (IAb) screening for T1D has resulted in a growing number of IAb+ people monitored for progression toward clinical diabetes. In research studies, such monitoring has been shown to significantly reduce the incidence of DKA at T1D diagnosis. Epidemiological data show that T1D is diagnosed more frequently in adulthood than in childhood at a median of more than 35 years of age. Despite this, misdiagnoses of T1D in adults remain common and are increasingly likely with age, which increase the likelihood for development of DKA. Clinical guidelines have been established that provide presymptomatic and symptomatic staging of T1D. Autoantibody screening over the past few decades has helped identify individuals at high risk of developing T1D. The American Diabetes Association supports using autoantibody (AAb) screening to diagnose T1D. T1D autoantibodies are markers of ongoing damage to insulin-producing beta cells. The four AAbs used in clinical practice to diagnose T1D are: AAbs against insulin (IAA), tyrosine phosphatase IA2 (IA2A), glutamic acid decarboxylase (GAD65), and zinc transporter 8. Numerous clinical trials demonstrate important clinical benefits associated with detecting T1D using an AAb screening approach. The recommendation is to use all 4 IAbs (ie, IA2, GAD65, IAA, and ZnT8) for T1D screening, diagnosis, and differential diagnosis from other types of diabetes mellitus. Testing all 4 IAbs at once provides the highest sensitivity for detecting the presence of at least 2 positive autoantibodies, which is associated with the eventual development of T1D. With a full suite of AAb tests, we can help you identify more patients with T1D, and identify them earlier, empowering you and your patients to proactively monitor their condition and help reduce the risk of serious complications, including DKA.

• #1 Adult-onset Type 1 Diabetes: Symptoms, Challenges, and Treatment

  https://www.webmd.com/diabetes/adults-can-get-type-1-diabetes-too

  Adult-Onset Type 1 Diabetes Diagnosis […] It’s not always easy to tell if you have type 1 diabetes when you’re an adult. There are several reasons for this. […] Symptoms take longer to show up in adults than they do in children. This can make it harder for doctors to know what’s going on, especially if they don’t specialize in the condition. […] Your doctor may suggest several tests that can tell you if you have diabetes, although these won’t show if it’s type 1 or type 2. […] Glycated hemoglobin (A1c) test. It measures your average blood glucose level for 2-3 months. If you have an A1c level of 6.5 or higher on two separate exams, you have diabetes. […] Random blood sugar test. It checks your blood glucose at a random time of day. A level of 200 milligrams/deciliter (mg/dL) or higher is a sign that you have diabetes. […] Fasting blood sugar test. Your doctor does this first thing in the morning before you’ve eaten. You have diabetes if your level is 126 mg/dL or higher on two separate tests. […] There are few reliable tests that let your doctor know that you have LADA. But if you are lean, are age 40 or younger, and your symptoms get worse even if you are on diabetes medication, it may be adult-onset type 1 diabetes. […] Your doctor can also test your C-peptide levels. C-peptide is a substance your body produces when it makes insulin. If your levels are low, your body isn’t producing enough insulin. This measure is important to diagnose LADA because, with type 2 diabetes, levels are high. If you have LADA, your levels will drop more slowly than with traditional type 1 diabetes.

• #1 Diagnosis and Classification of Diabetes | Johns Hopkins Diabetes Guide

  https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Diabetes_Guide/547038/all/Diagnosis_and_Classification_of_Diabetes

  Diabetes is classified as type 1 (formerly called juvenile-onset or insulin-dependent diabetes mellitus), type 2 (formerly called adult-onset or non-insulin dependent diabetes mellitus), gestational or other specific types. […] Type 1 diabetes: complete or almost complete insulin deficiency, usually caused by autoimmunity. Clinical features: younger onset (usually but not always before 30 years old), normal body weight, usually no family history of diabetes, insulin treatment required immediately or within about a year, positive GAD, IA2 and/or islet cell antibodies, susceptibility to ketoacidosis and unstable blood glucose levels. […] Latent autoimmune diabetes of adulthood (LADA): a form of type 1 diabetes with adult onset, slowly progressive, eventual insulin requirement but may respond to oral agents initially, usually no ketoacidosis on presentation, positive GAD, IA2 and/or islet cell antibodies. […] Gestational diabetes mellitus (GDM): diagnosed first during pregnancy. Usually a precursor to type 2, but may be first onset of type 1 diabetes.

• #1 Diagnosis of type 1 diabetes – Primary Care Notebook

  https://primarycarenotebook.com/pages/diabetes-and-endocrinology/diagnosis-of-type-1-diabetes

  consider further investigation in adults that involves measurement of C-peptide and/or diabetes-specific autoantibody titres if: type 1 diabetes is suspected but the clinical presentation includes some atypical features […] or type 1 diabetes has been diagnosed and treatment started but there is a clinical suspicion that the person may have a monogenic form of diabetes […] or classification is uncertain, and confirming type 1 diabetes would have implications for availability of therapy […] autoantibody tests have their lowest false negative rate at the time of diagnosis, and that the false negative rate rises thereafter […] C-peptide has better discriminative value the longer the test is done after diagnosis […] with autoantibody testing, carrying out tests for 2 different diabetes-specific autoantibodies, with at least 1 being positive, reduces the false negative rate.

• #1 Diagnosis of type 1 diabetes – Primary Care Notebook

  https://primarycarenotebook.com/pages/diabetes-and-endocrinology/diagnosis-of-type-1-diabetes

  diagnosis is confirmed by a single random blood glucose of 11.1mmol/L or above […] diagnosis requires two separate blood glucose results in the diabetes range […] fasting blood glucose 7.0mmol/L or above on 2 occasions and/or 2 hour blood glucose 11.1mmol/L or above 2 hours after a 75g oral glucose tolerance test […] should not be used as a diagnostic test for type 1 diabetes as the rapid onset of the condition makes the HbA1c unreliable […] positive result supports the diagnosis, but a negative result does not exclude T1D […] diagnose type 1 diabetes on clinical grounds in adults presenting with hyperglycaemia […] do not discount a diagnosis of type 1 diabetes if an adult presents with a BMI of 25 kg/m2 or above or is aged 50 years or above […] do not measure C-peptide and/or diabetes-specific autoantibody titres routinely to confirm type 1 diabetes

• #1 Type 1 Diabetes Mellitus Workup: Laboratory Studies, Tests to Differentiate Type 1 from Type 2 Diabetes

  https://emedicine.medscape.com/article/117739-workup

  ADA guidelines recommend measuring HbA1c at least every 6 months in patients with diabetes who are meeting treatment goals and who have stable glycemic control. For patients whose therapy has changed or who are not meeting glycemic goals, the guidelines recommend HbA1c testing every 3 months. […] In a 2009 report, however, an international expert committee appointed by the ADA, the European Association for the Study of Diabetes (EASD), and the International Diabetes Association recommended the HbA1c assay for diagnosing type 1 and type 2 DM. […] In the case of type 1 DM, however, the committee recommended using the test only when the condition is suspected but the classic symptoms of type 1 DMpolyuria, polydipsia, polyphagia, a random glucose level of 200 mg/dL, and unexplained weight lossare absent.

• #1 Type 1 diabetes | NHS inform

  https://www.nhsinform.scot/illnesses-and-conditions/diabetes/type-1-diabetes/

  In people whove already been diagnosed with diabetes, the HbA1c test is often used to show how well their diabetes is being controlled. […] The HbA1c test gives your average blood glucose level over the previous two to three months. The results can indicate whether the measures youre taking to control your diabetes are working. […] If youve been diagnosed with diabetes, its recommended that you have your HbA1c measured at least twice a year. However, you may need to have your HbA1c measured more frequently if: […] The normal blood glucose level is 4-7 mmol/l before meals and less than 8.5 mmol/l two hours after meals. Mmol/l means millimoles per litre, and its a way of defining the concentration of glucose in your blood. […] Your GP or diabetes care team will also carry out a different blood test every two to six months, called the HbA1c test. […] This gives a clearer idea of how well your treatment plan is working, by measuring how stable your glucose levels have been over the past 6-12 weeks. […] A high HbA1c level may indicate that your blood glucose level is consistently high and that your diabetes treatment plan needs to be altered.

• #1 Type 1 Diabetes: Symptoms, Diagnosis, and Treatment

  https://patient.info/diabetes/type-1-diabetes

  Type 1 diabetes is the type of diabetes that typically develops in children and in young adults. […] How is type 1 diabetes diagnosed? […] A simple dipstick test can detect sugar (glucose) in a sample of urine. This may suggest the diagnosis of type 1 diabetes. However, the only way to confirm the diagnosis is to have a blood test to look at the level of glucose in your blood. […] The National Institute for Health and Care Excellence (NICE) has updated its guidance for people with type 1 diabetes. It recommends that all adults with type 1 diabetes should be offered a continuous glucose monitoring (CGM) device. […] Another blood test is called HbA1c. This test measures a part of the red blood cells. Glucose in the blood attaches to part of the red blood cells. This part can be measured and gives a good indication of your blood glucose control over the previous 1-3 months. This test is usually done regularly by your doctor or nurse. Ideally, the aim is to maintain your HbA1c to less than 48 mmol/mol (6.5%). However, this may not always be possible to achieve and your target level of HbA1c should be agreed between you and your doctor.

• #1 Type 1 diabetes – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/type-1-diabetes/diagnosis-treatment/drc-20353017

  Diagnostic tests include: […] A1C level of 6.5% or higher on two separate tests means you have diabetes. […] A random blood sugar level of 200 mg/dL (11.1 mmol/L) or higher suggests diabetes. […] If it’s 126 mg/dL (7 mmol/L) or higher on two separate tests, you have diabetes. […] The tests help your provider decide between type 1 and type 2 diabetes when the diagnosis isn’t certain. […] The presence of ketones byproducts from the breakdown of fat in your urine also suggests type 1 diabetes, rather than type 2. […] A high A1C level may mean you need to change the insulin amount, meal plan or both. […] A provider who specializes in hormonal disorders (endocrinologist) usually works with other specialists on diabetes care. […] A simple blood test can show if you need more evaluation and treatment.

• #1 Just Diagnosed With Type 1 Diabetes | Diabetes | CDC

  https://www.cdc.gov/diabetes/signs-symptoms/just-diagnosed-type-1.html

  You may have found out you have type 1 diabetes from a routine blood test. Or you may have had symptoms that led to a trip to the doctor or even the emergency room. […] Currently, there isnt a cure for type 1 diabetes. However, what we know about the condition is constantly evolving. […] Type 1 diabetes requires your attention every day. To learn what you need to know, ask your doctor to refer you to diabetes self-management education and support (DSMES) services. […] Your health care team will let you know how to spot and treat high and low blood sugar and related health problems. […] Diabetes self-management education and support (DSMES) can help you solve problems, deal with stress, and lower your risk for other health problems.

• #1 Living with type 1 diabetes – NHS

  https://www.nhs.uk/conditions/type-1-diabetes/living-with/

  Checking your blood glucose is quick and easy for most people. […] You’ll be offered a blood glucose meter, small needles (lancets) and test strips to do finger-prick tests. […] You should also be given a continuous glucose monitor (CGM). This gives you readings at any time and reduces the number of finger-prick tests you need to do. […] It’s recommended that you check your blood glucose at least 4 times a day (or at least 5 times for children), including before meals and before bed. […] Your diabetes team will discuss with you what blood glucose levels to aim for. […] As a guide, the ideal range is: when you wake up, before you’ve eaten: 5 to 7mmol/L for adults, or 4 to 7mmol/L for children, before meals at other times of the day: 4 to 7mmol/L, at least 90 minutes after meals: 5 to 9mmol/L.

• #1 Newly diagnosed – things to help

  https://www2.hse.ie/conditions/type-1-diabetes/about/newly-diagnosed/

  When you are diagnosed, your diabetes team should give you: a blood glucose meter (glucometer) and a ketone meter, a continuous glucose monitor, small needles called lancets for pricking your finger, a lancet device (finger picker) to hold the lancets, a 'sharps bin’ for throwing away used needles, test strips, insulin pen, needles. […] You should expect to have regular appointments with your hospital diabetes team once you have a diagnosis of type 1 diabetes. […] These should be every 6 months, or more often when you are first diagnosed.

• #1 Diabetes Mellitus in Children and Adolescents – Pediatrics – Merck Manual Professional Edition

  https://www.merckmanuals.com/professional/pediatrics/endocrine-disorders-in-children/diabetes-mellitus-in-children-and-adolescents

  More than 90% of patients with newly diagnosed type 1 diabetes have 1 of these autoantibodies, whereas the absence of antibodies strongly suggests type 2 diabetes. […] The HbA1C criterion is typically more useful for diagnosing type 2 diabetes, and hyperglycemia should be confirmed with a fasting or random plasma glucose. […] Patients with type 1 diabetes should be tested at or near the time of diagnosis for other autoimmune diseases by measuring celiac disease antibodies and thyroid-stimulating hormone, thyroxine, and thyroid antibodies.

• #1 Diagnosis and treatment of type 1 diabetes at the dawn of the personalized medicine era | Journal of Translational Medicine | Full Text

  https://translational-medicine.biomedcentral.com/articles/10.1186/s12967-021-02778-6

  Although all patients with overt T1D exhibit pancreatic destruction and consequent dysregulation of blood glucose levels, not all cases of the disease are driven by the same factors or along the same timeline. Many patients experience a sometimes prolonged clinically silent phase in which it might have been possible to intervene and prevent or even reverse the course of disease. This knowledge has led to development of a staging classification system for T1D. […] Even once T1D is clinically evident, we are now beginning to appreciate that not all cases are the same, and that particular sub-types of the disease would benefit from distinct treatment strategies. […] By dissecting population- and individual-level risk factors for developing T1D, we now know that the disorder exists across developmental spectrum that can be categorized into distinct stages, and the likelihood of an individual developing clinically symptomatic status can be foreseen with considerable accuracy. […] All cases are proposed to start with a period of „incubation” where exposure to defined and undefined driving factors creates the conditions for -cell autoimmunity to emerge.

• #1 Diagnosis and treatment of type 1 diabetes at the dawn of the personalized medicine era | Journal of Translational Medicine | Full Text

  https://translational-medicine.biomedcentral.com/articles/10.1186/s12967-021-02778-6

  The aim of increasing correct diagnosis of classical versus monogenic T1D has been assisted by the introduction of the genomic risk score (GRS), which assesses an individuals risk of T1D based on their possession of a collection of multiple (1040) T1D risk variants. […] The GRS also effectively identifies those individuals with early-onset or pre-clinical T1D who show more autoimmunity and fewer syndromic features in comparison with those of monogenic diabetes. […] Current advances in affordable high-throughput genomic and molecular deep phenotyping technologies have pushed the rise of next-generation epidemiology with a more systematic focus than before. […] In conclusion, identification of high risk for T1D genetic groups in the pre-symptomatic stages, coupled with the use of autoantibody testing, GRS and molecular deep phenotyping through utilizing the advanced integrative data analysis, could support the development of approaches for early diagnosis and treatment of T1D in both symptomatic and pre-symptomatic patients.

• #1 Diagnosis and treatment of type 1 diabetes at the dawn of the personalized medicine era | Journal of Translational Medicine | Full Text

  https://translational-medicine.biomedcentral.com/articles/10.1186/s12967-021-02778-6

  Progress in recognition of the need for personalized diagnosis in T1D has been accompanied by intense research efforts towards personalized therapies. […] That said, innovative ways of achieving improved insulin-mediated glycemic control are becoming accessible to patients, while tissue transplants, genetic modification and stem-cell therapies are showing promise in pre-clinical models and human trials in specific sub-groups of patients. […] The predictable progression of T1D from early stages of autoimmunity to dysglycemia ahead of the symptomatic clinical disease could ease the design of reliable clinical trials using intermediate endpoint that require~50% smaller sample size that those using T1D as the endpoint. […] The crucial benefit of utilizing this staging system is to aid in development of innovative, stage-specific diagnostic and predictive biomarkers, support the design of clinical trials that utilizing the available data on risk profiles and individuals pre-symptomatic classification to design therapies specifically targeted to each phase of disease and ultimately, practice of personalized medicine approaches to avert symptomatic T1D.

• #1 Testing for Type 1 Diabetes: Getting a Type 1 Diabetes Diagnosis

  https://www.health.com/type-1-diabetes-diagnosis-7479818

  Identifying symptoms is an important first step when seeking a type 1 diabetes diagnosis. Symptoms of type 1 diabetes include excessive thirst, frequent urination, and losing weight without trying. […] Based on these symptoms, your healthcare provider will order glucose blood tests such as A1C, fasting blood sugar, or random blood sugar. Repeat testing may be needed. […] Blood sugar tests do not indicate what type of diabetes a person is living with. Your healthcare provider may order additional tests that are specific to type 1 diabetes. This may include a ketone urine or blood test or an autoantibody test.

• #1 Why Screen for Type 1 Diabetes | Screen for Type 1

  https://www.screenfortype1.com/why-screen-for-t1d/

  Type 1 diabetes (T1D) can be spotted with screening before symptoms are noticeable. As many as 40% of people have no idea they have T1D until they experience a life-threatening event that requires hospitalization. So don’t wait. Screening could help you or a loved one. […] By knowing if you or your loved one is in the early stages of autoimmune type 1 diabetes, you can be better prepared to recognize symptoms when they appear. This can help you understand what’s ahead and lower the risk of potentially life-threatening complications like diabetic ketoacidosis (DKA) with a doctor’s help. […] Each year, around 64,000 Americans are diagnosed with type 1 diabetes (T1D). Although T1D is not preventable, findings from surveys conducted by Beyond Type 1 and commissioned by Sanofi show that knowing sooner about the risk of developing diabetes can have a big impact.

• #2 Stages and diagnosis of T1D | Breakthrough T1D

  https://breakthrought1d.ca/stages-and-diagnosis-of-t1d/

  A type 1 diabetes (T1D) diagnosis can happen suddenly and unexpectedly. […] T1D often initially presents itself with the above symptoms, but it can only be properly identified through a series of tests. […] How is type 1 diabetes (T1D) diagnosed? […] Fasting blood-glucose test Doctors will often recommend a fasting blood-glucose test when they suspect T1D in a patient. […] Oral glucose tolerance test The oral glucose test takes the fasting test one step further. […] Random blood-glucose test The quickest option for testing for T1D is a random glucose test. […] Glycated hemoglobin (HbA1c) test The most comprehensive test is the hemoglobin A1c test. […] C-Peptide This test measures how much C-peptide is in a person’s blood. […] Autoantibodies […] These are the same autoantibodies that are tested for T1D risk screening.

• #2 Testing for Type 1 Diabetes: Getting a Type 1 Diabetes Diagnosis

  https://www.health.com/type-1-diabetes-diagnosis-7479818

  Type 1 diabetes is a chronic autoimmune condition in which the pancreas makes very little or no insulin. Without insulin, the amount of glucose in the blood (or, blood sugar) builds up and the levels become too high. Over time, high blood sugar levels can damage the kidneys, eyes, heart, and nerves. […] There are different ways to screen for and diagnose type 1 diabetes. Many of these tests involve measuring your bodys blood sugar levels. Testing is simple and you can expect your results to be available quickly. Blood sugar tests cannot be used to tell if you type 1 or type 2 diabetes. […] If they suspect type 1 diabetes, you may also undergo an autoantibody blood test and a ketone blood or urine test. Results from these two tests will help them confirm a type 1 diabetes diagnosis. […] In addition to blood tests, symptoms are an important part of the type 1 diabetes diagnosis. Your healthcare provider will ask about your symptoms and when they first began. Most signs and symptoms of type 1 diabetes indicate high blood sugar levels (hyperglycemia).

• #2 Diabetes: What It Is, Causes, Symptoms, Treatment & Types

  https://my.clevelandclinic.org/health/diseases/7104-diabetes

  Type 1 diabetes: This type is an autoimmune disease in which your immune system attacks and destroys insulin-producing cells in your pancreas for unknown reasons. Up to 10% of people who have diabetes have Type 1. Its usually diagnosed in children and young adults, but it can develop at any age. […] Symptoms of T1D can develop quickly over a few weeks or months. You may develop additional symptoms that are signs of a severe complication called diabetes-related ketoacidosis (DKA). DKA is life-threatening and requires immediate medical treatment. DKA symptoms include vomiting, stomach pains, fruity-smelling breath and labored breathing. […] Type 1 diabetes and LADA happen when your immune system attacks the insulin-producing cells in your pancreas. […] Diabetes-related ketoacidosis (DKA): This complication mainly affects people with Type 1 diabetes or undiagnosed T1D. It happens when your body doesnt have enough insulin. If your body doesnt have insulin, it cant use glucose for energy, so it breaks down fat instead. This process eventually releases substances called ketones, which turn your blood acidic. This causes labored breathing, vomiting and loss of consciousness. DKA requires immediate medical treatment. […] Healthcare providers diagnose diabetes by checking your glucose level in a blood test. Three tests can measure your blood glucose level: Fasting blood glucose test, Random blood glucose test, A1c.

• #2 Diabetes Diagnosis & Tests | ADA

  https://diabetes.org/about-diabetes/diagnosis

  There are several ways to diagnose diabetes. Each way usually needs to be repeated on a second day to diagnose diabetes. […] If your doctor determines that your blood glucose (blood sugar) level is very high, or if you have classic symptoms of high blood glucose in addition to one positive test, your doctor may not require a second test to diagnose diabetes. […] Diabetes is diagnosed at an A1C of greater than or equal to 6.5%. […] Diabetes is diagnosed at fasting blood glucose of greater than or equal to 126 mg/dl. […] Diabetes is diagnosed at two-hour blood glucose of greater than or equal to 200 mg/dl. […] Diabetes is diagnosed at blood glucose of greater than or equal to 200 mg/dl.

• #2 Type 1 diabetes in children – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/type-1-diabetes-in-children/diagnosis-treatment/drc-20355312

  There are several blood tests for type 1 diabetes in children. These tests are used to diagnose diabetes and to monitor diabetes management: […] Random blood sugar test. This is the primary screening test for type 1 diabetes. A blood sample is taken at a random time. A blood sugar level of 200 milligrams per deciliter (mg/dL), or 11.1 millimoles per liter (mmol/L), or higher, along with symptoms, suggests diabetes. […] Glycated hemoglobin (A1C) test. This test indicates your child’s average blood sugar level for the past 3 months. An A1C level of 6.5% or higher on two separate tests indicates diabetes. […] Fasting blood sugar test. A blood sample is taken after your child hasn’t eaten (fasted) for at least 8 hours or overnight. A fasting blood sugar level of 126 mg/dL (7.0 mmol/L) or higher suggests type 1 diabetes.

• #2 Type 1 diabetes – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/type-1-diabetes/diagnosis-treatment/drc-20353017

  Diagnostic tests include: […] A1C level of 6.5% or higher on two separate tests means you have diabetes. […] A random blood sugar level of 200 mg/dL (11.1 mmol/L) or higher suggests diabetes. […] If it’s 126 mg/dL (7 mmol/L) or higher on two separate tests, you have diabetes. […] The tests help your provider decide between type 1 and type 2 diabetes when the diagnosis isn’t certain. […] The presence of ketones byproducts from the breakdown of fat in your urine also suggests type 1 diabetes, rather than type 2. […] A high A1C level may mean you need to change the insulin amount, meal plan or both. […] A provider who specializes in hormonal disorders (endocrinologist) usually works with other specialists on diabetes care. […] A simple blood test can show if you need more evaluation and treatment.

• #2 Diagnostic criteria for diabetes | Diabetes UK

  https://www.diabetes.org.uk/for-professionals/improving-care/clinical-recommendations-for-professionals/diagnosis-ongoing-management-monitoring/new_diagnostic_criteria_for_diabetes

  With no symptoms diagnosis should not be based on a single glucose determination but requires confirmatory plasma venous determination. At least one additional glucose test result on another day with a value in the diabetic range is essential, either fasting, from a random sample or from the two hour post glucose load. If the fasting random values are not diagnostic the two hour value should be used. […] An HbA1c of 48mmol/mol (6.5%) is recommended as the cut off point for diagnosing diabetes. A value of less than 48mmol/mol (6.5%) does not exclude diabetes diagnosed using glucose tests. […] Finger-prick HbA1c should not be used unless the methodology and the healthcare staff and facility using it can demonstrate within the national quality assurance scheme that they match the quality assurance results found in laboratories. Finger prick tests must be confirmed by laboratory venous HbA1c in all patients.

• #2 Diabetes Testing | Diabetes | CDC

  https://www.cdc.gov/diabetes/diabetes-testing/index.html

  If your doctor thinks you have type 1 diabetes, your blood may also be tested for autoantibodies. These substances show your body is attacking itself and are often found with type 1 diabetes but not with type 2. […] You may have your urine tested for ketones. Ketones are produced when your body burns fat for energy. Having ketones in your urine indicates you have type 1 diabetes instead of type 2.

• #2 Stages and diagnosis of T1D | Breakthrough T1D

  https://breakthrought1d.ca/stages-and-diagnosis-of-t1d/

  Insulin Autoantibodies (IAA) This tests looks for the antibodies targeting insulin. […] Insulinoma-Associated-2 Autoantibodies (IA-2A) This test looks for antibodies mounted against a specific enzyme in beta cells. […] Zinc Transporter 8 (ZnT8Ab) This test looks at antibodies targeting an enzyme that is specific to beta cells. […] Islet Cell Cytoplasmic Autoantibodies (ICA) Islet cells are clusters of cells in the pancreas that produce hormones, including insulin. […] Glutamic Acid Decarboxylase Autoantibodies (GADA or Anti-GAD) This test looks for antibodies built against a specific enzyme in the insulin-producing pancreatic beta cells.

• #2 Type 1 Diabetes – Diagnosis and Treatment | Conditions, Treatments & Specialty | Geisinger

  https://www.geisinger.org/patient-care/conditions-treatments-specialty/type-1-diabetes

  If you have Type 1 diabetes, you’re in good company. Around 40,000 people are diagnosed each year in the United States, so Type 1 diabetes is a common condition. But you can get the individualized care you need. […] Your doctor may do several blood tests to check for Type 1 diabetes. These tests find out if antibodies are present and will check for: […] Glutamic acid decarboxylase (GAD65), an indicator of autoimmune disease […] Anti-islet cells, which block the production of insulin […] C-peptide levels, a measure of your naturally produced insulin.

• #2 Type 1 diabetes in children – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/type-1-diabetes-in-children/diagnosis-treatment/drc-20355312

  If blood sugar testing indicates diabetes, your health care provider may recommend additional tests to distinguish between type 1 diabetes and type 2 diabetes because treatment strategies differ by type. Additional tests include blood tests to check for antibodies that are common in type 1 diabetes. […] Your child’s primary care provider will probably make the initial diagnosis of type 1 diabetes. Hospitalization may be needed to stabilize your child’s blood sugar levels. […] Your child’s long-term diabetes care will likely be handled by a pediatric endocrinologist. Your child’s health care team also generally includes a certified diabetes care and education specialist, a registered dietitian, and a social worker.

• #2 Type 1 Diabetes | Boston Children’s Hospital

  https://www.childrenshospital.org/conditions/type-1-diabetes

  Type 1 diabetes is an autoimmune disease. The body’s immune system does not recognize the cells in the pancreas that make insulin (beta cells) and attacks and destroys these cells. As a result, the body is unable to produce enough insulin, a hormone that regulates the amount of sugar in the blood. […] To confirm a diagnosis, your child’s doctor may order some or all of the following blood and urine tests: […] Hemoglobin A1C test: a blood test that indicates your child’s average blood sugar level for the past two to three months […] Random blood sugar test: a blood sample taken at a random time […] Fasting blood sugar test: a blood sample taken after an overnight fast […] To help distinguish between type 1 and type 2 diabetes, your child’s doctor may also check for autoantibodies in the blood that are common in type 1 diabetes.

• #2 Diabetes Mellitus: Screening and Diagnosis | AAFP

  https://www.aafp.org/pubs/afp/issues/2016/0115/p103.html

  Screening for type 1 diabetes is not recommended for the following reasons: patients typically present with an acute onset of symptoms, no established cutoff value is available for antibody tests, no accepted treatment exists for patients who are asymptomatic, and no medication is available to prevent the disease in persons genetically predisposed to type 1 diabetes. […] The diagnosis of diabetes can be made when classic signs and symptoms of hyperglycemia are associated with a single random plasma glucose measurement of 200 mg per dL (11.1 mmol per L) or greater. Alternatively, the diagnosis can be made with an A1C level of 6.5% or greater, a fasting plasma glucose level of 126 mg per dL (7.0 mmol per L) or greater, or a two-hour plasma glucose level of 200 mg per dL or greater during an oral glucose tolerance test with 75-g glucose load; however, testing should be repeated on a subsequent day to confirm the diagnosis. […] Despite these concerns, the American Association of Clinical Endocrinologists recommend routine confirmation of type 1 diabetes using autoantibody testing.

• #2 Understanding Type 1 Diabetes | ADA

  https://diabetes.org/about-diabetes/type-1

  Testing, coupled with education about diabetes symptoms and close follow-up, has been shown to enable earlier diagnosis and to prevent diabetes ketoacidosis. […] Early detection and treatment of diabetes can decrease the risk of developing complications both at the time of diagnosis and in the future. By knowing and recognizing the symptoms above, you can learn if you have type 1 diabetes early and avoid complications, like diabetic ketoacidosis (DKA). […] If you have a family history of type 1 diabetes, your health care provider may suggest screening for type 1 diabetes. They will order a blood test to measure your islet autoantibodies. […] It is important to be sure that your diagnosis is correct because that will determine your treatment plan, allowing you manage your diabetes and prevent its complications. […] Read our Standards of Care in Diabetes2024 recommendations on type 1 diabetes screening and diagnosis.

• #2 Why Screen for Type 1 Diabetes | Screen for Type 1

  https://www.screenfortype1.com/why-screen-for-t1d/

  Type 1 diabetes (T1D) can be spotted with screening before symptoms are noticeable. As many as 40% of people have no idea they have T1D until they experience a life-threatening event that requires hospitalization. So don’t wait. Screening could help you or a loved one. […] By knowing if you or your loved one is in the early stages of autoimmune type 1 diabetes, you can be better prepared to recognize symptoms when they appear. This can help you understand what’s ahead and lower the risk of potentially life-threatening complications like diabetic ketoacidosis (DKA) with a doctor’s help. […] Each year, around 64,000 Americans are diagnosed with type 1 diabetes (T1D). Although T1D is not preventable, findings from surveys conducted by Beyond Type 1 and commissioned by Sanofi show that knowing sooner about the risk of developing diabetes can have a big impact.

• #2 Diagnosis and treatment of type 1 diabetes at the dawn of the personalized medicine era | Journal of Translational Medicine | Full Text

  https://translational-medicine.biomedcentral.com/articles/10.1186/s12967-021-02778-6

  Although all patients with overt T1D exhibit pancreatic destruction and consequent dysregulation of blood glucose levels, not all cases of the disease are driven by the same factors or along the same timeline. Many patients experience a sometimes prolonged clinically silent phase in which it might have been possible to intervene and prevent or even reverse the course of disease. This knowledge has led to development of a staging classification system for T1D. […] Even once T1D is clinically evident, we are now beginning to appreciate that not all cases are the same, and that particular sub-types of the disease would benefit from distinct treatment strategies. […] By dissecting population- and individual-level risk factors for developing T1D, we now know that the disorder exists across developmental spectrum that can be categorized into distinct stages, and the likelihood of an individual developing clinically symptomatic status can be foreseen with considerable accuracy. […] All cases are proposed to start with a period of „incubation” where exposure to defined and undefined driving factors creates the conditions for -cell autoimmunity to emerge.

• #2 Type 1 diabetes staging classification opens door for intervention | Type 1 Diabetes TrialNet

  https://www.trialnet.org/events-news/blog/type-1-diabetes-staging-classification-opens-door-intervention

  For most people, the onset of type 1 diabetes seems to occur suddenly, often resulting in a trip to the emergency room with life-threatening complications such as diabetic ketoacidosis (DKA). […] In Diabetes Care, the JDRF, American Diabetes Association (ADA), and Endocrine Society recommended adoption of a new type 1 diabetes staging classification. […] Type 1 diabetes can now be most accurately understood as a disease that progresses in three distinct stages. […] The new staging classification is vital to understanding how type 1 progresses. Equally important is TrialNet’s ability to diagnose the disease in its earliest stages, allowing for prompt intervention. […] Clinical research supports the usefulness of diagnosing type 1 diabetes early before beta cell loss advances to stage 3.

• #2 Diagnosis and management of type 1 diabetes mellitus – The Pharmaceutical Journal

  https://pharmaceutical-journal.com/article/ld/diagnosis-and-management-of-type-1-diabetes-mellitus

  More than 40% of diagnoses of type 1 diabetes mellitus occur after 30 years of age. […] T1DM is a heterogeneous condition resulting from pancreatic beta-cell destruction, leading to a severe impairment of insulin secretion and eventual absolute insulin deficiency. […] The clinical course of T1DM is characterised by the rapid onset of osmotic symptoms, including polyuria, polydipsia, weight loss and fatigue, in the presence of hyperglycaemia, up to 67% of patients can present with the potentially life-threatening acute complication of diabetic ketoacidosis (DKA) at diagnosis. […] Detectable autoantibodies include glutamate decarboxylase-65, islet antigen-2, zinc transporter-8, islet cell antibody and tetraspanin, with detectability diminishing with duration of T1DM. […] The aim of insulin therapy in T1DM is to mimic the physiological insulin secretion from a functional pancreas of a person without diabetes to maximise the chances of attaining normal blood glucose levels.

• #2 Type 1 Diabetes Mellitus Workup: Laboratory Studies, Tests to Differentiate Type 1 from Type 2 Diabetes

  https://emedicine.medscape.com/article/117739-workup

  Consequently, since 2010 the ADA has included an HbA1c level of 6.5% or higher as a criterion for diabetes diagnosis, with confirmation from repeat testing (unless clinical symptoms are present and the glucose level exceeds 200 mg/dL). […] Screening for type 1 DM in asymptomatic low-risk individuals is not recommended. However, in patients at high risk (eg, those who have first-degree relatives with type 1 DM), it may be appropriate to perform annual screening for anti-islet antibodies before the age 10 years, along with 1 additional screening during adolescence. […] A consensus statement published in 2021 by the ADA and the EASD provided an algorithm meant to aid in avoiding the misdiagnosis of adult-onset type 1 DM. In the algorithm, which was devised using data from White European populations, an islet autoantibody test is first carried out; if positive, type 1 diabetes is diagnosed.

• #2 Adult-onset Type 1 Diabetes: Symptoms, Challenges, and Treatment

  https://www.webmd.com/diabetes/adults-can-get-type-1-diabetes-too

  Adult-Onset Type 1 Diabetes Diagnosis […] It’s not always easy to tell if you have type 1 diabetes when you’re an adult. There are several reasons for this. […] Symptoms take longer to show up in adults than they do in children. This can make it harder for doctors to know what’s going on, especially if they don’t specialize in the condition. […] Your doctor may suggest several tests that can tell you if you have diabetes, although these won’t show if it’s type 1 or type 2. […] Glycated hemoglobin (A1c) test. It measures your average blood glucose level for 2-3 months. If you have an A1c level of 6.5 or higher on two separate exams, you have diabetes. […] Random blood sugar test. It checks your blood glucose at a random time of day. A level of 200 milligrams/deciliter (mg/dL) or higher is a sign that you have diabetes. […] Fasting blood sugar test. Your doctor does this first thing in the morning before you’ve eaten. You have diabetes if your level is 126 mg/dL or higher on two separate tests. […] There are few reliable tests that let your doctor know that you have LADA. But if you are lean, are age 40 or younger, and your symptoms get worse even if you are on diabetes medication, it may be adult-onset type 1 diabetes. […] Your doctor can also test your C-peptide levels. C-peptide is a substance your body produces when it makes insulin. If your levels are low, your body isn’t producing enough insulin. This measure is important to diagnose LADA because, with type 2 diabetes, levels are high. If you have LADA, your levels will drop more slowly than with traditional type 1 diabetes.

• #2 Diagnosis of type 1 diabetes mellitus in adulthood – a case report

  https://www.racgp.org.au/afp/2015/april/diagnosis-of-type-1-diabetes-mellitus-in-adulthood

  A diagnosis of diabetes mellitus was considered and the patient was sent for urgent investigations including fasting blood glucose, electrolytes, liver, kidney and thyroid function tests, and a coeliac disease screen in case gluten intolerance was causing her abdominal pains with meals. […] On the basis of these initial results, the patient was advised to commence insulin treatment. […] Given the rapid onset of hyperglycaemia in this case, further testing for autoimmune pathology was indicated. […] Within the week, the results returned with strongly positive glutamic acid decarboxylase (GAD) antibodies, insulinoma antigen-2 (IA2) antibodies and islet cell antibodies, confirming a diagnosis of type 1 diabetes mellitus. […] This case highlights an important diagnostic point, that types 1 or 1a diabetes should be considered in adult patients who present with particularly rapid-onset hyperglycaemia.

• #2 Diagnosis of type 1 diabetes – Primary Care Notebook

  https://primarycarenotebook.com/pages/diabetes-and-endocrinology/diagnosis-of-type-1-diabetes

  consider further investigation in adults that involves measurement of C-peptide and/or diabetes-specific autoantibody titres if: type 1 diabetes is suspected but the clinical presentation includes some atypical features […] or type 1 diabetes has been diagnosed and treatment started but there is a clinical suspicion that the person may have a monogenic form of diabetes […] or classification is uncertain, and confirming type 1 diabetes would have implications for availability of therapy […] autoantibody tests have their lowest false negative rate at the time of diagnosis, and that the false negative rate rises thereafter […] C-peptide has better discriminative value the longer the test is done after diagnosis […] with autoantibody testing, carrying out tests for 2 different diabetes-specific autoantibodies, with at least 1 being positive, reduces the false negative rate.

• #2 Type 1 Diabetes Mellitus Workup: Laboratory Studies, Tests to Differentiate Type 1 from Type 2 Diabetes

  https://emedicine.medscape.com/article/117739-workup

  ADA guidelines recommend measuring HbA1c at least every 6 months in patients with diabetes who are meeting treatment goals and who have stable glycemic control. For patients whose therapy has changed or who are not meeting glycemic goals, the guidelines recommend HbA1c testing every 3 months. […] In a 2009 report, however, an international expert committee appointed by the ADA, the European Association for the Study of Diabetes (EASD), and the International Diabetes Association recommended the HbA1c assay for diagnosing type 1 and type 2 DM. […] In the case of type 1 DM, however, the committee recommended using the test only when the condition is suspected but the classic symptoms of type 1 DMpolyuria, polydipsia, polyphagia, a random glucose level of 200 mg/dL, and unexplained weight lossare absent.

• #2 Diabetes Mellitus: Diagnosis and Screening | AAFP

  https://www.aafp.org/pubs/afp/issues/2010/0401/p863.html

  Diagnostic criteria include age of 30 years or older; no insulin treatment for six months after diagnosis; and presence of autoantibodies to glutamic acid decarboxylase, islet cells, tyrosine phosphatase (IA-2 and IA-2), or insulin. […] The 1997 ADA consensus guidelines lowered the blood glucose thresholds for the diagnosis of diabetes. […] Diabetes can be diagnosed if the patient has a fasting blood glucose level of 126 mg per dL (7.0 mmol per L) or greater on two separate occasions. […] An A1C level of greater than 6.5 percent on two separate occasions is considered diagnostic of diabetes. […] Tests that can be used to establish the etiology of diabetes include those reflective of beta cell function (e.g., C peptide) and markers of immune-mediated beta cell destruction (e.g., insulin, islet cell, glutamic acid decarboxylase, IA-2 and IA-2 autoantibodies).

• #2 Type 1 Diabetes – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK507713/

  Type 1 diabetes is a disease involving the immune-mediated destruction of insulin-producing pancreatic -cells, leading to insulin deficiency. […] Individuals with type 1 diabetes require lifelong exogenous insulin replacement. […] Diabetes self-management education and support should include training on blood glucose monitoring, insulin administration, ketone testing when indicated, nutrition education, methods to avoid and treat hypoglycemia, and sick day rules. […] The American Diabetes Association (ADA) recommends that first- and second-degree relatives of individuals with T1D be screened and offered T1D autoantibody testing. […] Testing for autoantibodies to pancreatic -cell autoantigens is important in confirming the diagnosis and distinguishing T1D from other forms of diabetes, mainly type 2 diabetes (T2D).

• #2 Type 1 diabetes – symptoms, diagnosis and treatment | healthdirect

  https://www.healthdirect.gov.au/type-1-diabetes

  Type 1 diabetes is when your immune system attacks and destroys the cells in your pancreas that normally make insulin. […] How is type 1 diabetes diagnosed? […] Your doctor will ask about your symptoms and examine you. If they think you may have type 1 diabetes, they will: do a finger-prick blood test to quickly check your blood glucose level, test your urine for glucose and ketones. […] If these tests show high levels of glucose, your doctor will recommend you go to the nearest hospital emergency department for more tests and treatment. […] Emergency treatment in hospital is needed for children, teenagers and adults with type 1 diabetes. […] If you are diagnosed with type 1 diabetes, you will be referred to a specialist diabetes team for ongoing care.

• #2 Just Diagnosed With Type 1 Diabetes | Diabetes | CDC

  https://www.cdc.gov/diabetes/signs-symptoms/just-diagnosed-type-1.html

  You may have found out you have type 1 diabetes from a routine blood test. Or you may have had symptoms that led to a trip to the doctor or even the emergency room. […] Currently, there isnt a cure for type 1 diabetes. However, what we know about the condition is constantly evolving. […] Type 1 diabetes requires your attention every day. To learn what you need to know, ask your doctor to refer you to diabetes self-management education and support (DSMES) services. […] Your health care team will let you know how to spot and treat high and low blood sugar and related health problems. […] Diabetes self-management education and support (DSMES) can help you solve problems, deal with stress, and lower your risk for other health problems.

• #2 Type 1 Diabetes: Symptoms, Diagnosis, and Treatment

  https://patient.info/diabetes/type-1-diabetes

  Type 1 diabetes is the type of diabetes that typically develops in children and in young adults. […] How is type 1 diabetes diagnosed? […] A simple dipstick test can detect sugar (glucose) in a sample of urine. This may suggest the diagnosis of type 1 diabetes. However, the only way to confirm the diagnosis is to have a blood test to look at the level of glucose in your blood. […] The National Institute for Health and Care Excellence (NICE) has updated its guidance for people with type 1 diabetes. It recommends that all adults with type 1 diabetes should be offered a continuous glucose monitoring (CGM) device. […] Another blood test is called HbA1c. This test measures a part of the red blood cells. Glucose in the blood attaches to part of the red blood cells. This part can be measured and gives a good indication of your blood glucose control over the previous 1-3 months. This test is usually done regularly by your doctor or nurse. Ideally, the aim is to maintain your HbA1c to less than 48 mmol/mol (6.5%). However, this may not always be possible to achieve and your target level of HbA1c should be agreed between you and your doctor.

• #2 Diagnosis and treatment of type 1 diabetes at the dawn of the personalized medicine era | Journal of Translational Medicine | Full Text

  https://translational-medicine.biomedcentral.com/articles/10.1186/s12967-021-02778-6

  The aim of increasing correct diagnosis of classical versus monogenic T1D has been assisted by the introduction of the genomic risk score (GRS), which assesses an individuals risk of T1D based on their possession of a collection of multiple (1040) T1D risk variants. […] The GRS also effectively identifies those individuals with early-onset or pre-clinical T1D who show more autoimmunity and fewer syndromic features in comparison with those of monogenic diabetes. […] Current advances in affordable high-throughput genomic and molecular deep phenotyping technologies have pushed the rise of next-generation epidemiology with a more systematic focus than before. […] In conclusion, identification of high risk for T1D genetic groups in the pre-symptomatic stages, coupled with the use of autoantibody testing, GRS and molecular deep phenotyping through utilizing the advanced integrative data analysis, could support the development of approaches for early diagnosis and treatment of T1D in both symptomatic and pre-symptomatic patients.

• #2 Diagnosis and Management of Type 1 Diabetes | Banner Health

  https://www.bannerhealth.com/services/diabetes/type-1/diagnosis-and-treatment

  Type 1 diabetes is a chronic condition that happens when your pancreas produces little to no insulin. Getting the right diagnosis as soon as possible is very important to keep you in good health. […] If your health care provider thinks you might have type 1 diabetes, they will review your medical history, perform a physical exam and order blood tests. […] A blood test to measure blood glucose (blood sugar) levels is an important part of getting a diagnosis. When checking for type 1 diabetes, your provider will also look for special proteins called antibodies in the blood. These antibodies can tell us if the body is mistakenly attacking its own insulin-producing cells in the pancreas. […] Your provider may use a few tests to make an accurate diagnosis. […] An HbA1c test is the main blood test used to diagnose type 1 diabetes. It tests your average blood sugar levels for the last two to three months.

• #2 Diagnosis and treatment of type 1 diabetes at the dawn of the personalized medicine era | Journal of Translational Medicine | Full Text

  https://translational-medicine.biomedcentral.com/articles/10.1186/s12967-021-02778-6

  Progress in recognition of the need for personalized diagnosis in T1D has been accompanied by intense research efforts towards personalized therapies. […] That said, innovative ways of achieving improved insulin-mediated glycemic control are becoming accessible to patients, while tissue transplants, genetic modification and stem-cell therapies are showing promise in pre-clinical models and human trials in specific sub-groups of patients. […] The predictable progression of T1D from early stages of autoimmunity to dysglycemia ahead of the symptomatic clinical disease could ease the design of reliable clinical trials using intermediate endpoint that require~50% smaller sample size that those using T1D as the endpoint. […] The crucial benefit of utilizing this staging system is to aid in development of innovative, stage-specific diagnostic and predictive biomarkers, support the design of clinical trials that utilizing the available data on risk profiles and individuals pre-symptomatic classification to design therapies specifically targeted to each phase of disease and ultimately, practice of personalized medicine approaches to avert symptomatic T1D.

• #3 Type 1 Diabetes – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK507713/

  Type 1 diabetes is a disease involving the immune-mediated destruction of insulin-producing pancreatic -cells, leading to insulin deficiency. […] Individuals with type 1 diabetes require lifelong exogenous insulin replacement. […] Diabetes self-management education and support should include training on blood glucose monitoring, insulin administration, ketone testing when indicated, nutrition education, methods to avoid and treat hypoglycemia, and sick day rules. […] The American Diabetes Association (ADA) recommends that first- and second-degree relatives of individuals with T1D be screened and offered T1D autoantibody testing. […] Testing for autoantibodies to pancreatic -cell autoantigens is important in confirming the diagnosis and distinguishing T1D from other forms of diabetes, mainly type 2 diabetes (T2D).

• #3 Type 1 Diabetes Mellitus Workup: Laboratory Studies, Tests to Differentiate Type 1 from Type 2 Diabetes

  https://emedicine.medscape.com/article/117739-workup

  Patients with type 1 DM typically present with symptoms of uncontrolled hyperglycemia (eg, polyuria, polydipsia, polyphagia). In such cases, the diagnosis of DM can be confirmed with a random (nonfasting) plasma glucose concentration of 200 mg/dL or a fasting plasma glucose concentration of 126 mg/dL (6.99 mmol/L) or higher. […] A fingerstick glucose test is appropriate in the emergency department (ED) for virtually all patients with diabetes. All fingerstick capillary glucose levels must be confirmed in serum or plasma to make the diagnosis. […] HbA1c is the stable product of nonenzymatic irreversible glycation of the beta chain of hemoglobin by plasma glucose and is formed at rates that increase with increasing plasma glucose levels. HbA1c levels provide an estimate of plasma glucose levels during the preceding 1-3 months.

• #3 Type 1 diabetes – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/type-1-diabetes/diagnosis-treatment/drc-20353017

  Diagnostic tests include: […] A1C level of 6.5% or higher on two separate tests means you have diabetes. […] A random blood sugar level of 200 mg/dL (11.1 mmol/L) or higher suggests diabetes. […] If it’s 126 mg/dL (7 mmol/L) or higher on two separate tests, you have diabetes. […] The tests help your provider decide between type 1 and type 2 diabetes when the diagnosis isn’t certain. […] The presence of ketones byproducts from the breakdown of fat in your urine also suggests type 1 diabetes, rather than type 2. […] A high A1C level may mean you need to change the insulin amount, meal plan or both. […] A provider who specializes in hormonal disorders (endocrinologist) usually works with other specialists on diabetes care. […] A simple blood test can show if you need more evaluation and treatment.

• #3 Diabetes Mellitus: Diagnosis and Screening | AAFP

  https://www.aafp.org/pubs/afp/issues/2010/0401/p863.html

  Diagnostic criteria include age of 30 years or older; no insulin treatment for six months after diagnosis; and presence of autoantibodies to glutamic acid decarboxylase, islet cells, tyrosine phosphatase (IA-2 and IA-2), or insulin. […] The 1997 ADA consensus guidelines lowered the blood glucose thresholds for the diagnosis of diabetes. […] Diabetes can be diagnosed if the patient has a fasting blood glucose level of 126 mg per dL (7.0 mmol per L) or greater on two separate occasions. […] An A1C level of greater than 6.5 percent on two separate occasions is considered diagnostic of diabetes. […] Tests that can be used to establish the etiology of diabetes include those reflective of beta cell function (e.g., C peptide) and markers of immune-mediated beta cell destruction (e.g., insulin, islet cell, glutamic acid decarboxylase, IA-2 and IA-2 autoantibodies).

• #3 Type 1 Diabetes – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK507713/

  Screening for T1D antibodies and family history are important in confirming the diagnosis. […] GAD65 should be the initial antibody tested when T1D in adults is suspected. IA2 or ZNT8 should be measured if GAD65 testing is negative or unavailable. […] In the absence of unequivocal hyperglycemia, the diagnosis is confirmed based on 2 abnormal test results. Once the diagnosis of diabetes is confirmed, distinguishing between T1D and other forms of diabetes, mainly T2D, is critical. […] Most patients with T1D have 1 or more positive T1D antibodies at the time of diagnosis.

• #3 Adult-onset Type 1 Diabetes: Symptoms, Challenges, and Treatment

  https://www.webmd.com/diabetes/adults-can-get-type-1-diabetes-too

  Adult-Onset Type 1 Diabetes Diagnosis […] It’s not always easy to tell if you have type 1 diabetes when you’re an adult. There are several reasons for this. […] Symptoms take longer to show up in adults than they do in children. This can make it harder for doctors to know what’s going on, especially if they don’t specialize in the condition. […] Your doctor may suggest several tests that can tell you if you have diabetes, although these won’t show if it’s type 1 or type 2. […] Glycated hemoglobin (A1c) test. It measures your average blood glucose level for 2-3 months. If you have an A1c level of 6.5 or higher on two separate exams, you have diabetes. […] Random blood sugar test. It checks your blood glucose at a random time of day. A level of 200 milligrams/deciliter (mg/dL) or higher is a sign that you have diabetes. […] Fasting blood sugar test. Your doctor does this first thing in the morning before you’ve eaten. You have diabetes if your level is 126 mg/dL or higher on two separate tests. […] There are few reliable tests that let your doctor know that you have LADA. But if you are lean, are age 40 or younger, and your symptoms get worse even if you are on diabetes medication, it may be adult-onset type 1 diabetes. […] Your doctor can also test your C-peptide levels. C-peptide is a substance your body produces when it makes insulin. If your levels are low, your body isn’t producing enough insulin. This measure is important to diagnose LADA because, with type 2 diabetes, levels are high. If you have LADA, your levels will drop more slowly than with traditional type 1 diabetes.

Zobacz więcej