CD4 Cell Count

Christopher J. Hoffmann, M.D., M.P.H., Joel E. Gallant, M.D., M.P.H.

DEFINITION

  • Number of CD4 cells (T-helper lymphocytes with CD4 cell surface marker), used to assess immune status, susceptibility to OIs, urgency of ART, need for OI prophylaxis, and for defining AIDS (CD4 < 200).

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