Final answer:
The RBC reference range for adults varies based on gender and other factors. For females, the range is 37-47, with a mean of 41, and for males, the range is 42-52, with a mean of 47. The hematocrit ranges from 36-50 percent, depending on gender and other factors.
Step-by-step explanation:
The RBC reference range for adults can be measured in different ways. One way is by looking at the packed cell volume (PCV) or hematocrit levels. In normal blood, about 45 percent of a sample is erythrocytes. The hematocrit ranges from 36-50 percent, depending on gender and other factors. For females, the hematocrit range is 37-47, with a mean value of 41, while for males, the range is 42-52, with a mean of 47.