Which statement(s) about vasodilators is/are true? (Select all that apply.)
a. They reduce systemic vascular resistance.
b. They increase afterload.
c. They reduce preload.
d. They decrease pulmonary congestion.
e. They increase tissue perfusion to muscles and organs.
f. They increase the volume of blood returning to the heart.
ANS: A, C, D, E
Vasodilators reduce systemic vascular resistance (afterload), decrease preload, relieve pulmonary congestion, and increase tissue perfusion to muscles and vital organs. Vasodilators reduce systemic vascular resistance (afterload) and reduce preload so that the high volume of blood returning to the heart is decreased.
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