A pregnant woman at 28 weeks is found to have a fasting plasma glucose of 95 mg/dL and a 2-hour post-75 g OGTT value of 160 mg/dL. By IADPSG/WHO 2013 criteria, she is diagnosed with:

• A Normal glucose tolerance in pregnancy
• B Overt diabetes mellitus in pregnancy
• C Gestational diabetes mellitus (GDM) ✓
• D Impaired glucose tolerance only

Explanation

IADPSG/WHO 2013 GDM thresholds for 75 g OGTT: fasting ≥ 92 mg/dL, 1-hour ≥ 180 mg/dL, 2-hour ≥ 153 mg/dL — any ONE value met is diagnostic. This patient has a fasting of 95 mg/dL (≥ 92) and 2-hour of 160 mg/dL (≥ 153), satisfying GDM criteria. Overt diabetes requires fasting ≥ 126 mg/dL or 2-hour ≥ 200 mg/dL. She does not meet those thresholds.

Reference: Williams Obstetrics, 26th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.