What is the normal range for Hemoglobin (Hgb) in males?

What is the normal range for Hemoglobin (Hgb) in males?

• A. 12-16 g/dL
• B. 13.5-17.5 g/dL
• C. 11-15 g/dL
• D. 14-18 g/dL

Answer: (B)

Hemoglobin levels in healthy adult males are typically 13.5 to 17.5 g/dL. Hemoglobin is the protein in red blood cells that carries oxygen, and men generally have higher levels than women due to testosterone-driven red-cell production. While exact reference ranges can vary a bit by lab or population, 13.5–17.5 g/dL is the standard interval used. Values below this range may suggest anemia, while values above can indicate polycythemia or factors like dehydration or higher altitude. Among the options listed, 13.5–17.5 g/dL matches the common normal range for adult males, making it the best choice.

Hemoglobin levels in healthy adult males are typically 13.5 to 17.5 g/dL. Hemoglobin is the protein in red blood cells that carries oxygen, and men generally have higher levels than women due to testosterone-driven red-cell production. While exact reference ranges can vary a bit by lab or population, 13.5–17.5 g/dL is the standard interval used. Values below this range may suggest anemia, while values above can indicate polycythemia or factors like dehydration or higher altitude. Among the options listed, 13.5–17.5 g/dL matches the common normal range for adult males, making it the best choice.