A 27-year-old at 26 weeks' gestation with no prior diabetes screening presents for prenatal care. Which screening approach best aligns with current US...

Question

A 27-year-old at 26 weeks' gestation with no prior diabetes screening presents for prenatal care. Which screening approach best aligns with current US guidance?

Accepted Answer

Two-step: 50 g 1-hour screen at 24-28 weeks followed, if positive, by 100 g 3-hour OGTT; diagnose if >=2 values abnormal

Answer

Single 75 g 2-hour OGTT at 24-28 weeks; diagnose if >=1 value abnormal (IADPSG)

Answer

Random plasma glucose at any time during pregnancy; diagnose if >=140 mg/dL

Answer

HbA1c only at 24-28 weeks; diagnose if >=6.0%

Answer

Screen only if BMI >=30 kg/m^2 or age >=35 years

us-usmle-step-2 MCQ (SBA): Gestational Diabetes Screening

A 27-year-old at 26 weeks' gestation with no prior diabetes screening presents for prenatal care. Which screening approach best aligns with current US guidance?