An Older Adult Client Is Being Assessed by the Nurse

Multiple Choice

An older adult client is being assessed by the nurse. The client states, "I seem to get sicker more often. I was a robust and healthy person for many years." In which manner does the nurse explain the theory of immunosenescence and aging?

A) Natural killer cells become sparse and less effective.
B) T lymphocytes have a decreased ability to recognize and attack antigens.
C) B lymphocytes become more effective in producing antibodies to antigens.
D) Immunizations are vital to boost the immune system and promote health.