A 31-Year-Old Woman Who Is at High Risk for Diabetes

A 31-year-old woman who is at high risk for diabetes is at 18 weeks' gestation. During her first antenatal visit, which is the accurate approach to evaluating the patient for diabetes?

A) Begin serial testing of the patient's serum glucose and HA1c at 24 weeks' gestation.
B) If diabetes is diagnosed, consider this condition to be gestational diabetes mellitus (GDM) .
C) Recognize HA1c equal to or greater than 4.5% or a fasting plasma glucose level equal to or greater than 90 mg/dl as being diagnostic of diabetes.
D) Conduct screening for type 2 diabetes mellitus as soon as possible.