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When is the oral glucose tolerance test performed?

Kevin W. Windom, MD
OBGYN (Obstetrics & Gynecology)
The oral glucose tolerance test is routinely performed between 24 to 28 weeks gestation. It is a test to screen for gestational diabetes. The patient is asked to drink a 50gram glucose drink and then 1 hour later her blood is drawn.  If her blood glucose level is greater than 140, she has failed the test and will have to repeat the test with a 3 hour glucose tolerance test.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.