Natural Killer (NK)/Natural Killer T-Cell Subsets, Quantitative, Blood

Use

The test quantitates the major natural killer (NK)-cell subsets relative to total NK cells or total lymphocytes and is useful in assessing various clinical contexts such as HIV infection, primary immune deficiencies with NK cell defects, NK-cell lymphocytosis, solid-organ transplantation, and immune reconstitution following bone marrow or hematopoietic cell transplantation. It is not useful for diagnosis or classification of NK cell malignancies and should not be used for assessing NK cell cytotoxic function.