With anaphylactic shock, which mechanism results in a decreased cardiac output?
A) Peripheral vasodilation
B) Increased cardiac output
C) Decreased alveolar ventilation
D) Fluid retention resulting in congestive heart failure

Question

Quizplus · Accepted Answer

Peripheral vasodilation results in decreased venous return.This decreases intravascular volume and the development of relative hypovolemia.Decreased venous return results in decreased stroke volume and a fall in cardiac output.

With Anaphylactic Shock, Which Mechanism Results in a Decreased Cardiac