A client tells the nurse that she has been working hard for the last 3 months to control her type 2 (non-insulin-dependent) diabetes mellitus with diet and exercise. To determine the effectiveness of the client’s efforts, the nurse should check（）
A. urine glucose level.
B. fasting blood glucose level.
C. serum fructosamine level.
D. glycosylated hemoglobin (Hb) level.
参考答案：D
解析：
Because some of the glucose in the bloodstream attaches to some of the Hb and stays attached during the 120-day life p of red blood cells, glycosylated Hb levels provide information about blood glucose levels during the previous 3 months. Fasting blood glucose and urine glucose levels give information about glucose levels only at the point in time when they were obtained. Serum fructosamine levels provide information about blood glucose control over the past 2 to 3 weeks.