More on the test...
The blood glucose test is ordered to measure the amount of glucose in the blood right at the time of sample collection. It is used to detect both hyperglycemia and hypoglycemia, to help diagnose diabetes, and to monitor glucose levels in persons with diabetes. Diabetes mellitus is diagnosed based on a high level of glucose (sugar) in the blood. Blood sugar test, done fasting and 2 hours after breakfast, is used for the diagnosis of diabetes.
Fasting blood glucose
In this test, a person is asked to fast overnight, at least 8 hours, and the level of glucose in the blood is then checked.
Post prandial (PP) blood glucose
This is tested two hours after having a meal. It serves as a challenge for the body to regulate the blood sugar after a meal.
Random blood sugar or glucose
This test is that which is done at any other time. The blood glucose can also be tested after giving 75 gm glucose by mouth (glucose challenge test). This is useful for detecting borderline diabetes and a condition called "impaired glucose tolerance". Blood glucose tests are also needed for checking the control in diabetes.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions.