Medical Emergencies · single question
Which laboratory test best reflects long-term glycemic control for diagnosing/monitoring diabetes?
Show answer and explanation
Correct answer: C. HbA1c (glycated hemoglobin)
- A. Fasting glucose reflects a single moment.
- B. Random glucose is a snapshot subject to recent intake.
- C. Correct. HbA1c reflects average blood glucose over ~2-3 months and is used to diagnose and monitor diabetes.
- D. The OGTT measures the response to a glucose load at points in time, not long-term control.
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