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Diabetes

Diabetes tests

Regular glucose screening is very important in early detection and management of diabetes.
Look out for the following signs

  • Urinate (pee) a lot, often at night.
  • Are very thirsty.
  • Lose weight without trying.
  • Are very hungry.
  • Have blurry vision.
  • Have numb or tingling hands or feet.

Diabetes tests

The following tests are performed for screening and confirmation of diabetes.

Fasting Blood Sugar Test

This measures your blood sugar after an overnight fast (not eating). A fasting blood sugar level of 99 mg/dL or lower is normal, 100 to 125 mg/dL indicates you have prediabetes, and 126 mg/dL or higher indicates you have diabetes.

Random Blood Sugar Test

This measures your blood sugar at the time you’re tested. You can take this test at any time and don’t need to fast (not eat) first. A blood sugar level of 200 mg/dL or higher indicates you have diabetes.

Glucose Tolerance Test

This measures your blood sugar before and after you drink a liquid that contains glucose. You’ll fast (not eat) overnight before the test and have your blood drawn to determine your fasting blood sugar level. Then you’ll drink the liquid and have your blood sugar level checked 1 hour, 2 hours, and possibly 3 hours afterward. At 2 hours, a blood sugar level of 140 mg/dL or lower is considered normal, 140 to 199 mg/dL indicates you have prediabetes, and 200 mg/dL or higher indicates you have diabetes.

HBA1C Test

The HBA1C test measures your average blood sugar level over the past 2 or 3 months. A HBA1C below 5.7% is normal, between 5.7 and 6.4% indicates you have prediabetes, and 6.5% or higher indicates you have diabetes. Note that these ranges stand to change according to the laboratory work processes and no single test is used to confirm a condition.