A blood glucose test measures the amount of a type of sugar, called glucose, in your blood. Glucose comes from eating carbohydrates in food and is the main source of energy used by the body.
Normally, your blood glucose levels increase slightly after you eat. This increase causes your pancreas to release insulin so that your blood glucose levels do not get too high. Blood glucose levels that remain high over time can damage your eyes, kidneys, nerves, and blood vessels.
This test measures blood glucose exactly 2 hours after eating.
Why It’s Done?
Postprandial Blood Glucose test is done to:
- Check for and monitor the treatment of diabetes.
- Check for diabetes that occurs during pregnancy gestational diabetes.
- Determine if an abnormally low blood sugar level hypoglycemia is present.
What Is the Normal Range of Postprandial Blood Glucose?
If the amount of blood-sugar two hours after a meal is greater than 200 mg% on two separate occasions, diabetes is present. Blood-sugar values between 140 and 200 mg% should be termed 'impaired glucose tolerance'.