postprandial blood glucose test

biochemistry

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July 1, 2026

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The postprandial blood glucose test is a procedure used to assess how well the body metabolizes glucose, a primary sugar in the blood. This test is typically performed two hours after consuming a standard glucose solution or a meal rich in carbohydrates. A plasma glucose level exceeding 140 mg/100 ml after this period may indicate a need for a more comprehensive glucose tolerance test. This is particularly important for diagnosing conditions like diabetes mellitus, where the body's ability to regulate blood sugar is impaired, leading to higher and more prolonged glucose levels after eating. The test can also be used during pregnancy to screen for gestational diabetes.1

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glucose tolerance test
…screening test is the 2-hour postprandial blood glucose test. This test is performed 2 hours after intake of a standard glucose solution or a meal containing 100 grams of carbohydrates. A plasma glucose level above 140 mg/100 ml indicates the need for a glucose tolerance test.
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…screening test is the 2-hour postprandial blood glucose test. This test is performed 2 hours after intake of a standard glucose solution or a meal containing 100 grams of carbohydrates. A plasma glucose level above 140 mg/100 ml indicates the need for a glucose tolerance test.
Read More