Which laboratory value is considered the best single marker of long-term glycemic control in patients with diabetes?

Which laboratory value is considered the

Multiple choice — select the best answer

AGlycated hemoglobin (HbA1c)
BFasting plasma glucose
CSerum fructosamine
D2-hour postprandial glucose

✓ Correct answer: A. Glycated hemoglobin (HbA1c) HbA1c reflects average blood glucose over approximately 2–3 months and is the gold standard for monitoring long-term glycemic control. Fasting glucose and postprandial glucose are point-in-time measurements.

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Topic: Clinical Nutrition

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Which laboratory value is considered the best single marker of long-term glycemic control in patients with diabetes?

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