Progressive Care Nursing Certification (PCCN) Practice Exam

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Which medication can help prevent the rupture of an abdominal aortic aneurysm?

Benazepril (Lotensin)
Captopril (Capoten)
Metoprolol (Lopressor)
Ramipril (Altace)

The correct answer is: Metoprolol (Lopressor)

The medication that is most associated with the prevention of abdominal aortic aneurysm rupture is Metoprolol (Lopressor). This beta-blocker helps to manage blood pressure and reduce the heart rate, thereby decreasing the workload on the heart and the overall blood pressure within the aorta. By lowering the systemic blood pressure, Metoprolol can help mitigate the risk of rupture in an abdominal aortic aneurysm, which is especially important in patients who have documented hypertension. Additionally, beta-blockers have been shown to have a favorable impact on the remodeling of the vascular wall, which can be beneficial in the management of aneurysms. High blood pressure is a significant risk factor for aneurysm expansion and rupture, so effective management of hypertension with Medotprolol plays a critical role in preventing such complications. The other medications listed, while they may also have effects on blood pressure, do not have the same targeted effects on reducing the risk of aneurysm rupture specifically as Metoprolol does in clinical practice.