![]() ![]() ![]() A1C can also be affected if red cell survival is decreased. People of African, Mediterranean, or Southeast Asian descent may have a less common type of hemoglobin that can interfere with some A1C tests. Some people may get false results if they have kidney failure, liver disease, or severe anemia. This isn’t necessary in the presence of unequivocal symptoms of diabetes (increased thirst, urination, and weight loss) and a random sugar over 200 mg/dl. Before confirming a diagnosis of diabetes, your doctor should repeat the test that was abnormal on a different day. Some people may have a blood glucose test that indicates diabetes but their A1C is normal, or vice versa. That means if your A1C is 6, it might indicate a range from 5.5 to 6.5. The A1C test result can be up to half a percent higher or lower than the actual percentage. Accurate home test kits are also now available for purchase.īut accuracy is relative when it comes to A1C or even blood glucose tests. Manufacturers of A1C tests now have to prove that their tests are consistent with those used in a major diabetes study. But the National Glycohemoglobin Standardization Program has helped improve the accuracy of these tests. In the past, many different types of A1C tests gave different results depending on the lab that analyzed them. Other names for the test include the glycosylated hemoglobin test, glycohemoglobin test, glycated hemoglobin test, or A1C.Īnyone who’s had diabetes for any length of time knows that A1C tests haven’t been reliable until recently. The A1C test is also known as the hemoglobin A1c test or HbA1c test. Because it doesn’t require fasting, the test can be given at any time as part of an overall blood screening. This is why A1C tests are now being used for the diagnosis and screening of prediabetes and diabetes. A normal fasting blood sugar may not eliminate the possibility of type 2 diabetes. So even if you have a high fasting blood sugar, your overall blood sugar may be normal, or vice versa. The higher a persons blood glucose levels have bee, the higher the number of red blood cells that will have become glycated, and therefore the higher HbA1c. A1C tests became available in the 1980s and quickly became an important tool in monitoring diabetes control.Ī1C tests measure average blood glucose over the past 2 to 3 months. Some people may have high blood sugar at 3 a.m. This is because your blood sugar can vary wildly depending on the time of day, your activity levels, and even hormonal changes. These tests are accurate, but only in the moment - they’re actually very limited as an overall measurement of blood sugar control. People with diabetes used to depend on daily finger pricks to measure their blood sugar levels. A1C levels refer to the amount of hemoglobin in your blood that has glucose attached to it, which can be useful for monitoring blood sugar levels. ![]()
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