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Reticulocyte Count

Reticulocytes are an immature form of red blood cells.

Normally, there are very few reticulocytes in the blood. The normal response to anemia or bleeding is increased production and release of reticulocytes, as in:

  • Iron-deficiency anemia, effectively treated with iron
  • Pernicious anemia, effectively treated with B12.
  • Several days after an acute hemorrhage
  • Hemolytic anemias

The exception to this increase is when the bone marrow is unable to increase production and release of reticulocytes, such as in:

  • Iron deficiency anemia
  • Aplastic anemia
  • Pernicious anemia
  • Bone marrow tumors
  • Radiation therapy

Normal Values*

Men 0.5-1.5% of RBCs
Women 0.5-2.5% of RBCs
Children 0.5-4.0% of RBCs

*These are general values taken from a variety of sources. The actual normal values may vary from lab to lab and from one type of testing protocol to another.


 

 

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Bureau of Medicine and Surgery
Department of the Navy
2300 E Street NW
Washington, D.C
20372-5300

Operational Medicine
 Health Care in Military Settings
CAPT Michael John Hughey, MC, USNR
NAVMED P-5139
  January 1, 2001

United States Special Operations Command
7701 Tampa Point Blvd.
MacDill AFB, Florida
33621-5323

*This web version is provided by The Brookside Associates Medical Education Division.  It contains original contents from the official US Navy NAVMED P-5139, but has been reformatted for web access and includes advertising and links that were not present in the original version. This web version has not been approved by the Department of the Navy or the Department of Defense. The presence of any advertising on these pages does not constitute an endorsement of that product or service by either the US Department of Defense or the Brookside Associates. The Brookside Associates is a private organization, not affiliated with the United States Department of Defense.

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Operational Medicine 2001
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