Letter G

Glucose, fasting blood

Glucose, fasting blood: A method for learning how much glucose (sugar) there is in a blood sample taken after an overnight fast.

The fasting blood glucose test is commonly used in the detection of diabetes mellitus.

A blood sample is taken in a lab, doctor's office, or hospital.

The test is 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)

Medical disclaimer

The information on this page is for educational and informational purposes only and does not constitute medical advice in any way.

It does not replace the advice of a physician, pharmacist or other healthcare professional.
It does not represent a prescription of drugs, diagnostic exams or therapies.
In case of symptoms, doubts or concerns about your health, always consult a qualified physician.

In case of emergency call 911 (US) or 112 (EU).