Because the reticulocyte count is expressed as a percentage of total RBCs, it must be corrected according to the extent of anemia with the following formula: reticulocyte % × (patient Hct/normal Hct) = corrected reticulocyte count.

Why is there a need for reticulocyte count to be corrected in certain situations?

When you have anemia, the percent of reticulocytes present in the blood may appear high compared to the overall number of RBCs. In order to get a more accurate assessment of bone marrow function, a calculation called a corrected reticulocyte count may be reported.

What is reticulocyte crisis?

Aplastic crisis, Marrow failure. Reticulocytopenia, is the medical term for an abnormal decrease of reticulocytes in the body. Reticulocytes are new, immature red blood cells.