单选题
A 28-year-old woman is scheduled for a glucose tolerance test (GTT). She asks the nurse what result indicates diabetes mellitus. The nurse should respond that the minimum parameter for indication of diabetes mellitus is a 2-hour blood glucose level greater than A. 120 mg/dL B. 150 mg/dL C. 200 mg/dL D. 250 mg/dL
【正确答案】
C
【答案解析】A GTT indicates a diagnosis of diabetes mellitus when the 2-hour blood glucose level is greater than 200 mg/dL. Confirmation occurs when at least one subsequent result is greater than 200 mg/dL.