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1 Hour Glucose Tolerance

Accurate 1 hour glucose tolerance test results are incredibly valuable for pregnant patients and their children. Use this guide to decipher the results.

Harriet Murray avatar

By Harriet Murray on Aug 2, 2025.

Fact Checked by Ericka Pingol.

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1 Hour Glucose Tolerance Template

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Commonly asked questions

1-hour glucose tolerance tests are typically requested by healthcare providers, including doctors, endocrinologists, and midwives, to monitor the blood sugar control of pregnant patients with a risk of gestational diabetes.

1-hour glucose tolerance tests are used when a relatively non-intrusive and quick assessment of blood sugar control is needed, for pregnant patients, this is typically within the second trimester.

A 1 hour glucose tolerance test involves the pregnant patient consuming a glucose-rich drink and having their blood sugar levels measured an hour after consumption. The results are compared to the glucose level parameters and a diagnosis can be made.

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