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What is the normal range for a reticulocyte count? Your reticulocyte count is a percentage of the total number of red blood cells in your blood sample. The normal reticulocyte count ranges between 0.5 % to 2.5% in adults and 2% to 6% in infants.
Absolute Reticulocyte Count & Reticulocyte Index. Evaluates bone marrow response to anemia, often in sickle cell patients. When to Use. Why Use. % of reticulocytes. %. Hematocrit. %. Normal hematocrit.
Introduction. Reticulocytes are immature red blood cells (RBCs) produced in the bone marrow and released into the peripheral blood, where they mature into RBCs within 1 to 2 days. An increase or decrease in reticulocyte count can be an indicator of erythropoiesis activity or failure, especially relative to anemias and bone marrow dysfunction. [1]
Normal Range. Normally, reticulocytes make up 0.5 – 1.5 % of red blood cells (up to 2.6% according to some laboratories). The values are higher in infants, ranging from 2 – 6%. Absolute reticulocyte counts normally range from 20 – 80 thousand cells/uL (cells per microliter).
A reticulocyte count checks to see if your bone marrow is making the right amount of red blood cells when old ones die off. If you have too few, your tissues may not get enough oxygen. If you have too many, you could be at risk for blood clots or other health concerns.
Low or normal range numbers in the presence of anemia indicate inappropriately low RBC production. However, in some cases of hemolytic anemia the reticulocyte count will be low (e.g. comorbid renal disease, infection) and these patients are at risk for developing severe anemia.
The reticulocyte count is a measure of the immature red blood cells (reticulocytes or "adolescent" red blood cells) recently released from the bone marrow into the circulation and is ordinarily around 1% in people who have a normal red blood cell count.