In systolic heart failure, what effect does the renin-angiotensin-aldosterone system (RAAS) have on stroke volume?
A)Increases preload and decreases afterload
B)Increases preload and increases afterload
C)Decreases preload and increases afterload
D)Decreases preload and decreases afterload

Question

Quizplus · Accepted Answer

Activation of the RAAS increases preload through the effects of aldosterone secretion, a sequela of the RAAS activity. RAAS also increases afterload through vasoconstriction mediated by angiotensin II.

In Systolic Heart Failure, What Effect Does the Renin-Angiotensin-Aldosterone System