Answer to Question 1
ANS: D
ACE inhibitors reduce blood pressure and help preserve renal function in people with diabetes. ACE inhibitors dilate both veins and arterioles. ACE inhibitors work on the renin-angiotensin-aldosterone system, not the nervous system. ACE inhibitors do not have effects on the bronchioles of the lungs.
Answer to Question 2
ANS: A
Vasodilators that dilate capacitance vessels, or veins, lead to a decrease in venous return to the heart, which reduces preload and the force of ventricular contraction. The resultant effect is a decrease in cardiac work. With a decrease in ventricular contraction, cardiac output is reduced, as is tissue perfusion. Dilation of veins causes a decrease in venous return.