Plasma renin activity is lower than normal in patients with
(a) hemorrhagic shock
(B) essential hypertension
(C) congestive heart failure
(d) hypertension caused by aortic constriction above the renal arteries
Plasma renin activity is typically lower than normal in patients with:
(B) essential hypertension
In essential hypertension, there is often a state of increased blood volume and vascular resistance, which can lead to suppression of the renin-angiotensin-aldosterone system (RAAS). In contrast, conditions like hemorrhagic shock, congestive heart failure, and hypertension caused by aortic constriction above the renal arteries usually result in increased renin activity due to decreased renal perfusion or compensatory