What is the role of oral glucose-tolerance testing in the workup of polycystic ovarian syndrome (PCOS)?

Updated: Sep 19, 2019
  • Author: Richard Scott Lucidi, MD, FACOG; Chief Editor: Richard Scott Lucidi, MD, FACOG  more...
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Because the prevalence of impaired glucose tolerance and type 2 diabetes mellitus is high in women with polycystic ovarian syndrome (PCOS)—particularly those who have a body mass index (BMI) greater than 30 kg/m2, have a strong family history of type 2 diabetes, or are older than 40 years—a 75-g oral glucose-tolerance test (OGTT) should be performed. A 2-hour postload glucose value of less than 140 mg/dL indicates normal glucose tolerance; a value of 140-199 mg/dL indicates impaired glucose tolerance; and a value of 200 mg/dL or higher indicates diabetes mellitus. [47]

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