Question

Which of the following statement is true regarding compensatory responses to congestive heart failure? You may select more than one answer.

a.	Angiotensin decreased water reabsorption by the kidney to decrease circulating blood volume

b.	Aldosterone is a potent vasoconstrictor that shunts blood away from distal capillary beds and to the kidney to promote kidney perfusion

c.	Atrial natriuretic peptide decreases circulating blood volume by increasing urine production by the kidney

d.	Vasopressin induces global vascular smooth muscle relaxation to promote blood flow to distal capillary beds

Answer 1

C- The main physiological actions of arterial natriuretic peptide is to reduce arterial pressure by decreasing blood volume and systemic vascular resistance. It causes increased fluid excretion. While angiotensin is a vasoconstrictor it increases blood flow.