Diuretics lower blood pressure and decrease peripheral and pulmonary edema
in congestive heart failure. In renal or liver disorders diuretics inhibit sodium and
water reabsorption from the kidney tubules resulting in an increase in urine flow.
Circulatory disorders impair the flow of blood throughout the body. Circulatory
drugs are used to restore and maintain circulation. There are four groups of
circulatory drugs: anticoagulants and antiplatelets prevent blood clots from form-
ing, thrombolytics dissolve blood clots, antilipemics decrease blood lipids, and
peripheral vasodilators dilate vessels narrowed by vasospasm.Quiz
- Vasodilators work by
(a) reducing cardiac afterload.
(b) dilating the arterioles of the kidneys.
(c) improving circulation to the skeletal muscles.
(d) all of the above. - What type of angina occurs over the course of a day?
(a) Stable
(b) Preinfarction
(c) Class angina
(d) Distal angina - Beta-blockers
(a) decrease the workload of the heart and decrease the heart’s oxygen
demands.
(b) increase the workload of the heart and decrease the heart’s oxygen
demands.
(c) decrease the workload of the heart and increase the heart’s oxygen
demands.
(d) None of the above - Repolarization is the time when the electrical impulses return to normal.
(a) True
(b) False
(^370) CHAPTER 19 Cardiac Circulatory Medications