A glucose tolerance test measures how well your body is able to process glucose, or sugar. Your doctor can use it to diagnose diabetes.

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The most common glucose tolerance test is the oral glucose tolerance test (OGTT). Before the test begins, a sample of blood will be taken. You will then be asked to drink a liquid containing a certain amount of glucose (usually 75 grams). Your blood will be taken again every 30 to 60 minutes after

What is a glucose tolerance test? A glucose tolerance test (GTT) diagnoses diabetes in pregnancy by checking how well your body regulates your blood sugar levels.

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The Role of the Oral Glucose Tolerance Test (OGTT) An OGTT need only be considered to establish a diagnosis of diabetes if blood glucose values fall into an equivocal range (e.g. FPG >6.0 but an OGTT is not necessary if …

Find out how the oral glucose tolerance test can help diagnose diabetes. And see why anyone who is pregnant needs this test.

Impaired glucose tolerance (IGT) is diagnosed using the oral glucose tolerance test (OGTT). Find out about how impaired glucose tolerance is diagnosed.

Why it’s done. The glucose tolerance test identifies abnormalities in the way your body handles glucose after a meal — often before your …

The one hour oral glucose challenge test [GCT] is a screening test for gestational diabetes that measures plasma or serum glucose concentration 1 hour after a 50-g oral …