Prediabetes testing may comprise of:
Glycated hemoglobin (A1C) test - This blood test signals your average blood sugar level for the past two to three months. The higher your blood sugar, the more hemoglobin you'll have with sugar attached. A regular A1C should be below 5.7 percent. An A1C level between 5.7 and 6.4 percent is considered prediabetes. A degree of 6.5 percent or higher on two different evaluations signifies you've diabetes. Certain conditions can make the A1C test wrong - such as in case you are pregnant or have an unusual type of hemoglobin (known as a hemoglobin version).
Following are other tests that the doctor may use to diagnose prediabetes:
Fasting blood sugar test. A blood sample will be required after you overnight or fast for at least eight hours. This is occasionally known as impaired fasting glucose (IFG). A blood sugar level of 126 mg/dL (7.0 mmol/L) or higher may signal diabetes mellitus.
Oral glucose tolerance test - This evaluation is rarely used to diagnose diabetes except during pregnancy. A blood sample will be taken after you overnight or fast for at least eight hours. Then you'll drink a sugary solution, and your blood sugar level will be measured again after two hours. A blood sugar level less than 140 mg/dL (7.8 mmol/L) is regular.
This really is occasionally referred to as impaired glucose tolerance (IGT). A blood sugar level of 200 mg/dL (11.1 mmol/L) or higher may signal diabetes mellitus.
Your doctor may recommend a screening test every 36 months, if your blood sugar level is normal. Further testing may be needed, if you might have prediabetes. For example, your physician should check your fasting blood sugar, A1C, total cholesterol, HDL cholesterol, low-density lipoprotein (LDL) cholesterol and triglycerides at least one time annually, perhaps more often if you have additional risk factors for diabetes.
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