Diabetes Health Center

The fasting plasma glucose (FPG) test measures blood sugar levels in an individual who has not eaten anything for at least eight full hours. This is the preferred and most common test for diagnosing diabetes because of its convenience and low cost.

An oral glucose tolerance test (OGTT) measures blood sugar levels after an individual fasts for at least eight hours and two hours after the patient drinks a glucose-containing beverage.

A random plasma glucose test, also known as a casual plasma glucose test, measures blood sugar without regard to when the person being tested last ate. This test is often used with an assessment of symptoms for a proper diagnosis.

If you suspect you are at risk for diabetes or diabetes runs in your family, schedule an appointment with your doctor or healthcare professional in order to receive proper testing for diabetes.

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Review Date: 
August 13, 2012
Last Updated:
September 12, 2014
Source:
dailyrx.com