This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'A healthy 20-year-old G1P0 presents for her first OB visit at 10 weeks gestational age. She denies any significant medical history both personally and in her family. All of the following tests should be ordered as pa of the initial prenatal care visit except \nSelect and explain. \nA. HIV, B. Hepatitis B surface antigen, C. One-hour glucose tolerance test, D. Type and screen', 'role': 'user'}, {'content': 'Answer: C \nExplanation: (Cunningham, 21/e, pp 225-559.) A 1hglucose tolerance test should be performed between 24 and 28 weeks for women at risk for gestational diabetes. It is recommended that all women undergo tests for hepatitis B, HIV, type and screen, and CBC at the first prenatal visit.', 'role': 'assistant'}]