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Screening for Gestational Diabetes
- Less than 35 years of age
- Normal weight before pregnancy
- Not a member of an ethnic group with a high risk of diabetes (Hispanic American, African American, Native American, Asian American, Indigenous Australian, Pacific Islander)
- No history of diabetes in parents or siblings
- No history of abnormal glucose tolerance
- No glucose in urine
- No history of poor outcomes of pregnancy
- If your blood sugar level is less than 130 mg/dL (7.2 mmol/L) at the one-hour mark—The likelihood that you have gestational diabetes is low. You do not require further testing.
- If your blood sugar level is greater than 130 mg/dL (7.2 mmol/L)—The test is considered positive (abnormal). Your chance of having gestational diabetes is 90%. You will need to take the three-hour oral glucose tolerance test to confirm the diagnosis. Not all women that have an abnormal or positive 50-gram glucose test have gestational diabetes.
Gestational diabetes mellitus (GDM). EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed/ . Updated July 11, 2012. Accessed August 17, 2012.
Screening for gestational diabetes mellitus. The Society of Obstetricians and Gynaecologists of Canada website. Available at: http://www.sogc.org/guidelines/public/121E-CPG-November2002.pdf . Published November 2002. Accessed August 20, 2012.
What I need to know about gestational diabetes. National Diabetes Information Clearinghouse (NDIC) website. Available at: http://diabetes.niddk.nih.gov/dm/pubs/gestational/#7 . Updated December 6, 2011. Accessed August 17, 2012.
- Reviewer: Andrea Chisholm, MD
- Review Date: 09/2013
- Update Date: 09/30/2013