Oral glucose tolerance test (OGTT)

Why it is done

Diagnosing diabetes in pregnancy and unclear cases.

Preparation

Fast overnight; the test takes about 2 hours. Laboratory-specific; see the reference range on your report. High or positive may mean: Diabetes or gestational diabetes. Low or negative may mean: Normal glucose tolerance. General information, not a diagnosis. Results must be interpreted by a qualified health worker.

What it measures

Blood sugar before and after a sugar drink.

Sample type

Blood

If the result is high

Diabetes or gestational diabetes.

If the result is low

Normal glucose tolerance.

संबंधित स्थितियाँ

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यह कहाँ कराएँ

सामान्य प्रश्न

What does the Oral glucose tolerance test (OGTT) measure?
Blood sugar before and after a sugar drink.

Why is the Oral glucose tolerance test (OGTT) done?
Diagnosing diabetes in pregnancy and unclear cases.

Do I need to fast for the Oral glucose tolerance test (OGTT)?
Fast overnight; the test takes about 2 hours.

What does a high or positive Oral glucose tolerance test (OGTT) mean?
Diabetes or gestational diabetes.

What does a low or negative Oral glucose tolerance test (OGTT) mean?
Normal glucose tolerance.

What is the normal range for the Oral glucose tolerance test (OGTT)?
Laboratory-specific; see the reference range on your report.

Oral glucose tolerance test (OGTT) क्यों किया जाता है?
Diagnosing diabetes in pregnancy and unclear cases.

Oral glucose tolerance test (OGTT) के लिए तैयारी/उपवास चाहिए?
Fast overnight; the test takes about 2 hours. Laboratory-specific; see the reference range on your report. High or positive may mean: Diabetes or gestational diabetes. Low or negative may mean: Normal glucose tolerance. General information, not a diagnosis. Results must be interpreted by a qualified health worker.