Which value best indicates normal hemoglobin for a nonpregnant adult female?

Which value best indicates normal hemoglobin for a nonpregnant adult female?

• A. 12 g/dL
• B. 9 g/dL
• C. 17 g/dL
• D. 20 g/dL

Answer: (A)

Normal hemoglobin levels differ by sex and pregnancy status. For a nonpregnant adult female, a value around 12 g/dL sits within the typical normal range, generally about 12–15.5 g/dL (some labs up to 16). A reading of 9 g/dL would indicate anemia, lowering oxygen-carrying capacity. Readings of 17 g/dL or 20 g/dL are well above the normal range and not considered normal in this context; such high values suggest polycythemia or other conditions. Therefore, 12 g/dL best indicates normal hemoglobin for a nonpregnant adult female.