The Nurse Knows Which of the Following Statements Listed Below

The nurse knows which of the following statements listed below is accurate regarding the functions and nature of cytokines relative to a variety of pathologies?

A) "A particular cytokine can have varied effects on different systems, a fact that limits their therapeutic use."
B) "Cytokine production is constant over time, but effects are noted when serum levels cross a particular threshold."
C) "Most cytokines are produced by granular leukocytes, and different cells are capable of producing the same cytokine."
D) "Cytokine actions are self-limiting, in that activation of one precludes activation of other cytokines with similar actions."