What is the formula to calculate the corrected reticulocyte percentage?

The formula for calculating the corrected reticulocyte percentage is based on assessing the reticulocyte count in relation to the hematocrit levels, specifically to adjust the reticulocyte percentage against normal hematocrit values.

This correction is necessary because reticulocyte counts can be misleading if they are not evaluated in the context of the patient's hematocrit level. If a patient's hematocrit is lower than normal, the reticulocyte percentage may appear lower than it actually is relative to the body's response to anemia. By multiplying the reticulocyte count by the ratio of the patient's hematocrit to a normal hematocrit (which is typically around 45% for men and 40% for women), we can accurately assess whether the body is adequately producing reticulocytes in response to anemia.

The correct answer, therefore, signifies a method to standardize reticulocyte counts based on a patient's hematocrit level and provides a more reliable indicator of erythropoietic activity in conditions like anemia.