What is the normal reference range for hemoglobin in adult males?

What is the normal reference range for hemoglobin in adult males?

• A. 11-15 g/dL
• B. 13-18 g/dL
• C. 12-16 g/dL
• D. 13-17 g/dL

Answer: (B)

Hemoglobin reflects the blood’s capacity to carry oxygen. For a healthy adult male, the normal range is about 13 to 18 g/dL. This higher adult-male value compared with females is due in part to hormonal influences on red blood cell production. Values within this range indicate adequate oxygen transport, while lower values suggest anemia and higher values can point to dehydration or conditions like polycythemia. The range 13-18 g/dL is a standard reference used in many nursing texts, making it the best match for adult males. The other ranges fall outside the typical normal span and are less representative of a healthy adult man.

Hemoglobin reflects the blood’s capacity to carry oxygen. For a healthy adult male, the normal range is about 13 to 18 g/dL. This higher adult-male value compared with females is due in part to hormonal influences on red blood cell production. Values within this range indicate adequate oxygen transport, while lower values suggest anemia and higher values can point to dehydration or conditions like polycythemia. The range 13-18 g/dL is a standard reference used in many nursing texts, making it the best match for adult males. The other ranges fall outside the typical normal span and are less representative of a healthy adult man.