Which of the following laboratory results for a patient with type 2 diabetes mellitus would indicate the patient needs adjustment in diet or medication?
1. glycosylated hemoglobin of 6 percent
2. glycosylated hemoglobin of 10 percent
3. fasting blood glucose of 120 gm/dL
4. random blood glucose of 150 gm/dL
2
Rationale: Glycosylated hemoglobin of 10 percent is above the desired level of 3.9 to 7.2 percent, indicating the average blood sugar during the past 3 to 4 months is elevated. The glycosylated hemoglobin level of 6 percent is normal. Fasting blood glucose of 120 gm/dL and a random blood glucose level of 150 gm/dL are elevated values but are not the best overall indicators because these elevations could be attributed to many factors and are a single blood sugar reading.
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