The nurse is caring for a client who has not responded well to other treatments for heart failure. Which drug class is used for 2–3 days when other drugs have failed?
1. Beta-adrenergic blockers
2. Phosphodiesterase inhibitors
3. Angiotensin-receptor blockers
4. Cardiac glycosides
Correct Answer: 2
Rationale 1: Beta-adrenergic blockers is incorrect. Phosphodiesterase inhibitors are used for only 2–3 days when other drugs have failed.
Rationale 2: Because of their toxicity, phosphodiesterase inhibitors are reserved for patients who have not responded to ACE inhibitors or cardiac glycosides, and they are generally used only for 2–3 days.
Rationale 3: Angiotensin-receptor blockers is incorrect. Phosphodiesterase inhibitors are used for only 2–3 days when other drugs have failed.
Rationale 4: Cardiac glycosides is incorrect. Phosphodiesterase inhibitors are used for only 2–3 days when other drugs have failed.
Global Rationale: Because of their toxicity, phosphodiesterase inhibitors are reserved for patients who have not responded to ACE inhibitors or cardiac glycosides, and they are generally used only for 2—3 days. Beta-adrenergic blockers is incorrect. Phosphodiesterase inhibitors are used for only 2—3 days when other drugs have failed. Angiotensin-receptor blockers is incorrect. Phosphodiesterase inhibitors are used for only 2—3 days when other drugs have failed. Cardiac glycosides is incorrect. Phosphodiesterase inhibitors are used for only 2—3 days when other drugs have failed.
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