Pharmacology and the Nursing Process Test Bank Related

Review Pharmacology and the Nursing Process Test Bank related questions and content

The nurse understands that which of the ff. best describes the action of enalapril maleate (Vasotec)?

  • A. It decreases levels of angiotensin II
  • B. It dilates the arterioles and veins
  • C. It adjusts the extracellular volume
  • D. It decreases cardiac output
Correct Answer: A

Rationale: Step-by-step rationale for why choice A is correct:
1. Enalapril maleate is an angiotensin-converting enzyme (ACE) inhibitor.
2. ACE inhibitors like enalapril maleate block the conversion of angiotensin I to angiotensin II.
3. By inhibiting the formation of angiotensin II, enalapril maleate decreases the levels of angiotensin II.
4. Angiotensin II is a potent vasoconstrictor, so decreasing its levels leads to vasodilation and decreased blood pressure.

Summary of why other choices are incorrect:
- Choice B: Enalapril maleate primarily dilates arterioles by decreasing angiotensin II levels, not veins.
- Choice C: Enalapril maleate does not directly adjust extracellular volume; it primarily affects the renin-angiotensin-aldosterone system.
- Choice D: Enalapril maleate