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Definition
By Mayo Clinic staffThe glucose challenge test measures your body's response to sugar (glucose). The glucose challenge test is done during pregnancy to screen for gestational diabetes — a type of diabetes that develops only during pregnancy.
The glucose challenge test is done in two steps. First you drink a sugary solution. One hour later, your blood sugar level is measured. The results of the glucose challenge test indicate whether you might have gestational diabetes. If the test is positive, additional testing is needed to confirm the diagnosis.
The glucose challenge test is a modified version of the glucose tolerance test, a similar test used to screen for type 2 diabetes.
- Jovanovic L. Screening and diagnosis of gestational diabetes mellitus. http://www.uptodate.com/home/index.html. Accessed May 3, 2010.
- Tan PC, et al. The 50-g glucose challenge test and pregnancy outcome in a multiethnic Asian population at high risk for gestational diabetes. International journal of gynecology and obstetrics. 2009;105:50.
- Lamar ME, et al. Jelly beans as an alternative to a fifty-gram glucose beverage for gestational diabetes screening. American Journal of Obstetrics and Gynecology. 1999;181:1154.
- Position statement: Standards of medical care in diabetes — 2010. Diabetes Care. 2010;33:S11.
- What is gestational diabetes? American Diabetes Association. http://www.diabetes.org/gestational-diabetes.jsp. Accessed May 4, 2010.
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