Print By Mayo Clinic Staff Request an appointment About Sept. 08, 2023 Print Show references AskMayoExpert. Gestational diabetes mellitus. Mayo Clinic; 2022. Durnwald C. Gestational diabetes mellitus: Screening, diagnosis, and prevention. https://www.uptodate.com/contents/search. Accessed March 3, 2023. American College of Obstetricians and Gynecologists. Practice Bulletin No.190: Gestational diabetes mellitus. Obstetrics & Gynecology. 2018; doi:10.1097/AOG.0000000000002501. Tests & diagnosis for gestational diabetes. National Institute of Diabetes and Digestive and Kidney Diseases. https://www.niddk.nih.gov/health-information/diabetes/overview/what-is-diabetes/gestational/tests-diagnosis. Accessed March 9, 2023. Related Gestational diabetes Polyhydramnios Products & Services A Book: Mayo Clinic Guide to a Healthy Pregnancy Glucose challenge testAbout PRC-20394266 Patient Care & Health Information Tests & Procedures Glucose challenge test