A reticulocyte count test is prescribed by a doctor to measure the level of reticulocytes in your blood.
Reticulocytes are immature red blood cells. In the process of red blood cell formation, reticulocytes develop and mature in the bone marrow and then circulate for about a day in the blood stream before developing into mature red blood cells.
A reticulocyte count can help your doctor learn if your bone marrow is producing enough red blood cells.