The nurse would be correct to state that the purpose of angiogenesis inhibitors is to:
a. kill existing cancer cells directly.
b. suppress the formation of new blood vessels in tumors.
c. enhance the size of collateral vessels.
d. enhance red cell development in the bone marrow.
ANS: B
Angiogenesis inhibitors suppress the formation of new blood vessels, thereby depriving solid tumors of the expanding blood supply they need for continued growth. Angiogenesis inhibitors cannot kill tumor cells that already exist. Angiogenesis inhibitors do not enhance collateral vessel or red cell development.
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