Glucose tolerance test

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Definition

By Mayo Clinic staff

Controlling Your Diabetes

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The glucose tolerance test, also known as the oral glucose tolerance test, measures your body's response to sugar (glucose). The glucose tolerance test can be used to screen for type 2 diabetes. More commonly, a modified version of the glucose tolerance test is used to diagnose gestational diabetes — a type of diabetes that develops only during pregnancy.

Why it's done
References
  1. American Diabetes Association. Standards of medical care in diabetes — 2013. Diabetes Care. 2013;36(suppl):1.
  2. Evensen AE. Update on gestational diabetes mellitus. Primary Care. 2012;39:83.
  3. Glucose. Lab Tests Online. http://labtestsonline.org/understanding/analytes/glucose/tab/glance. Accessed Dec. 7, 2012.
  4. McCullough DK. Diagnosis of diabetes mellitus. http://www.uptodate.com/index. Accessed Dec. 7, 2012.
  5. The American College of Obstetricians and Gynecologists (committee opinion). Screening and diagnosis of gestational diabetes mellitus. Obstetrics and Gynecology. 2011;118:751.
  6. Castro MR (expert opinion). Mayo Clinic, Rochester, Minn. Dec. 7, 2012.
MY00145 March 12, 2013

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