A health care professional will take a blood sample from a vein in your arm, using a small needle. After the needle is inserted, a small amount of blood will be collected into a test tube or vial. You may feel a little sting when the needle goes in or out.

This usually takes less than five minutes. There is very little risk to having a blood test. You may have slight pain or bruising at the spot where the needle was put in, but most symptoms go away quickly. A1C results tell you what percentage of your hemoglobin is coated with glucose.

The percent ranges are just a guide to what is normal. What's normal for you depends on your health, age, and other factors. Ask your provider what A1C percentage is healthy for you. Providers often use more than one test to diagnose diabetes. So, if your test result was higher than normal, you may have another A1C test or a different type of diabetes test , usually either a fasting blood glucose test or an oral glucose tolerance test OGTT.

If your A1C test was done to monitor your diabetes, talk with your provider about what your test results mean. Learn more about laboratory tests, reference ranges, and understanding results. The A1C test is not used to diagnose gestational diabetes or type 1 diabetes.

Also, if you have a condition that affects your red blood cells, such as anemia or another type of blood disorder , an A1C test may not be accurate for diagnosing diabetes. Kidney failure and liver disease can also affect A1C results. In these cases, your provider may recommend different tests to diagnose diabetes and prediabetes.

The information on this site should not be used as a substitute for professional medical care or advice. Contact a health care provider if you have questions about your health. Hemoglobin A1C HbA1c Test. What is a hemoglobin A1C HbA1C test? An A1C test can show your average glucose level for the past three months because: Glucose sticks to hemoglobin for as long as the red blood cells are alive.

Red blood cells live about three months. Other names: HbA1C, A1C, glycohemoglobin, glycated hemoglobin, glycosylated hemoglobin. What is it used for? An A1C test may be used to screen fo r or diagnose: Type 2 diabetes. With type 2 diabetes your blood glucose gets too high because your body doesn't make enough insulin to move blood sugar from your bloodstream into your cells, or because your cells stop responding to insulin.

Prediabetes means that your blood glucose levels are higher than normal, but not high enough to diagnosed as diabetes. Lifestyle changes, such as healthy eating and exercise , may help delay or prevent prediabetes from becoming type 2 diabetes.

Why do I need an HbA1C test? The Centers for Disease Control CDC recommends A1C testing for diabetes and prediabetes if: You are over age If your results are normal, you should repeat the test every 3 years. If your results show you have prediabetes, you will usually need to be tested every 1 to 2 years.

Ask your provider how often to get tested and what you can do to reduce your risk of developing diabetes. If your results show you have diabetes, you should get an A1C test at least twice a year to monitor your condition and treatment.

You are under 45 and are more likely to develop diabetes because you: Have prediabetes. Are overweight or have obesity. Have a parent or sibling with type 2 diabetes. Have high blood pressure or high cholesterol levels. Have heart disease or have had a stroke.

Are physically active less than 3 times a week. Have had gestational diabetes diabetes during pregnancy or given birth to a baby over 9 pounds.

Are African American, Hispanic or Latino, American Indian, or an Alaska Native person. Some Pacific Islander and Asian American people also have a higher risk of developing diabetes. Have polycystic ovarian syndrome PCOS.

You may also need an A1C test if you have symptoms of diabetes, such as: Feeling very thirsty Urinating peeing a lot Losing weight without trying Feeling very hungry Blurred vision Numb or tingling hands or feet Fatigue Dry skin Sores that heal slowly Having more infections than usual.

What happens during an A1C test? With settings managed in the iMonnit cloud-based mobile app, your Thermostat controls are on your phone.

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