HbA1c normal value?

HbA1c normal value?

• A. 5.7% (39 mmol/mol)
• B. <5.7% (39 mmol/mol)
• C. <5.0%
• D. ≥5.7% (39 mmol/mol)

Answer: (B)

HbA1c shows average glucose over about 2–3 months. The normal range is below 5.7% (less than 39 mmol/mol). Values from 5.7% to 6.4% indicate prediabetes, and 6.5% or higher indicates diabetes. So the statement that normal HbA1c is under 5.7% best captures the standard reference range. The other options either place the cutoff at the boundary without including all normal values, or suggest a more restrictive or abnormal threshold.

HbA1c shows average glucose over about 2–3 months. The normal range is below 5.7% (less than 39 mmol/mol). Values from 5.7% to 6.4% indicate prediabetes, and 6.5% or higher indicates diabetes. So the statement that normal HbA1c is under 5.7% best captures the standard reference range. The other options either place the cutoff at the boundary without including all normal values, or suggest a more restrictive or abnormal threshold.