Nurse Rose is aware that the statement that best explains why furosemide (Lasix) is administered to treat hypertension is:
A. It dilates peripheral blood vessels.
B. It decreases sympathetic cardio acceleration.
C. It inhibits the angiotensin-converting enzymes.
D. It inhibits the reabsorption of sodium and water in the loop of Henle.
Correct Answer: D. It inhibits the reabsorption of sodium and water in the loop of Henle.
Furosemide is a loop diuretic that inhibits sodium and water reabsorption in the loop Henle, thereby causing a decrease in blood pressure.
Option A: Vasodilators cause dilation of peripheral blood vessels, directly relaxing vascular smooth muscle and decreasing blood pressure.
Option B: Adrenergic blockers decrease sympathetic cardio acceleration and decrease blood pressure.
Option C: Angiotensin-converting enzyme inhibitors decrease blood pressure due to their action on angiotensin.