A reticulocyte count indicates that 5% of Tyler's red blood cells were reticulocytes. His blood test also indicated he had polycythemia and a hematocrit of 65%. Explain the connection between these three facts.

Explanation:

What is reticulocyte count?

Reticulocytes are immature red blood cells (blood cells that are not yet fully developed). The reticulocyte count measures the amount of reticulocytes in the blood. This helps doctors know how many red blood cells the bone marrow is producing.

Why is the reticulocyte count done?

If a child has a reduced amount of red blood cells, which is called anemia, a reticulocyte count may be done. The reticulocyte count helps doctors know if the bone marrow is functioning properly in the production of red blood cells.