What is the normal hematocrit range for females and males?

• A. Female 38-46%, Male 40-54%
• B. Female 35-46%, Male 42-54%
• C. Female 30-40%, Male 40-50%
• D. Female 36-48%, Male 44-56%

Answer: (B)

Hematocrit is the proportion of red blood cells in whole blood, expressed as a percentage. In adults, normal ranges differ by sex because males typically have higher red blood cell mass due to androgens, while females can have lower RBC mass partly from menstruation. A typical normal range is about 35-46% for females and 42-54% for males, which matches the option given. These ranges help clinicians assess anemia or polycythemia and guide further testing or treatment. Keep in mind that factors like dehydration, pregnancy, altitude, or chronic illness can shift hematocrit, so labs consider the whole clinical picture. The other options deviate from the commonly used adult reference intervals.