What is the normal hematocrit value?

The normal hematocrit value typically ranges between 40-50% for adult males and can be slightly lower for adult females, generally around 35-45%. The hematocrit measures the proportion of blood volume that is made up of red blood cells, which is essential for assessing oxygen-carrying capacity and overall blood health.

Given this context, the choice of 40-50% aligns with the common reference range for adult males, making it the most accurate selection among the provided options. Understanding the normal range is critical for evaluating patient health, diagnosing potential anemia or polycythemia, and guiding treatment decisions.