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Military Obstetrics & Gynecology
Laboratory

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CD4+ Lymphocyte Count

CD4 Lymphocytes are T cells (helper cells), produced primarily in the thymus, and play a significant role in cellular immunity.

A drop in CD4 lymphoctes accompanies the transition from an HIV positive state to AIDS. 

Normal Values*

CD4 Helper cells (relative) 34-67%
CD4 Helper cells (absolute) 493-1191cells/l
CD4 Helper cells (AIDS Criteria) <200 cells/l

*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.

The information contained here is an abbreviated summary. For more detailed and complete information, consult the manufacturer's product information sheets or standard textbooks

Source: Operational Medicine 2001,  Health Care in Military Settings, NAVMED P-5139, May 1, 2001, Bureau of Medicine and Surgery, Department of the Navy, 2300 E Street NW, Washington, D.C., 20372-5300

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