The patient, recently diagnosed with HIV, is waiting for results of his lab work to determine his T cell count and says to the nurse, "What exactly is a T cell?" What is the nurse's best response?
A) "T cells are monocytes, which are a type of white blood cell that helps to fight off infections and other foreign bodies that enter the body."
B) "T cells are neutrophils, which are a type of white blood cell that helps to fight off infections and other foreign bodies that enter the body."
C) "T cells are lymphocytes, which are a type of white blood cell that helps to fight off infections and other foreign bodies that enter the body."
D) "T cells are basophils, which are a type of white blood cell that helps to fight off infections and other foreign bodies that enter the body."
C
Feedback:
T cells are lymphocytes, a type of white blood cells with large, varied nuclei that can be either T cells or B cells. T cells are not neutrophils, which are capable of moving outside the bloodstream and phagocytizing foreign material. Basophils are myelocytic leukocytes containing chemical substances important for initiating and maintaining an immune or inflammatory response. Monocytes are macrophages capable of phagocytizing an antigen and help to remove foreign material from the body.
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