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Fasting blood glucose

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Fasting blood glucose

(Science: endocrinology, investigation) a method for finding out how much glucose (sugar) is in the blood. The test can show if a person has diabetes.

a blood sample is taken in a lab or doctors office. The test is usually done in the morning before the person has eaten. The normal, nondiabetic range for blood glucose is from 70 to 110 mg/dl, depending on the type of blood being tested. If the level is over 140 mg/dl, it usually means the person has diabetes (except for newborns and some pregnant women).