Following a kitchen accident with a knife, the client's cut has experienced a decrease in the amount of bleeding and has developed a clot. The nurse knows this is primarily a result of humoral control of blood flow with the release of:
A) Histamine
B) Bradykinin
C) Serotonin
D) Prostaglandin E2
Ans: C
Feedback:
Serotonin release causes vasoconstriction of blood vessels and plays a major role in control of bleeding. Histamine, bradykinin, and prostaglandin E2 cause vasodilation of blood vessels.
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