A nurse is caring for a client who has heart failure and a new prescription for lisinopril.
For which of the following adverse effects should the nurse monitor when administering lisinopril?
A.
Tinnitus.
B.
Hypotension.
C.
Hypokalemia.
D.
Bradycardia.
The correct answer and Explanation is :
The correct answer is B. Hypotension.
Explanation:
Lisinopril is an angiotensin-converting enzyme (ACE) inhibitor commonly prescribed for managing heart failure, hypertension, and other cardiovascular conditions. It works by blocking the enzyme responsible for converting angiotensin I to angiotensin II, a substance that causes blood vessels to constrict. As a result, lisinopril helps to lower blood pressure and reduce the workload on the heart.
When administering lisinopril, it is crucial to monitor for several potential adverse effects, with hypotension being a primary concern. Here’s why:
- Hypotension: Lisinopril can cause a significant drop in blood pressure, especially when a patient first starts the medication or if the dose is increased. This effect occurs because the medication dilates blood vessels, which can lead to a reduction in blood pressure. Monitoring blood pressure regularly is essential to ensure it does not fall to dangerously low levels, which can cause symptoms like dizziness, lightheadedness, and fainting.
- Tinnitus: While tinnitus (ringing in the ears) can be a side effect of some medications, it is not typically associated with lisinopril. It is more commonly linked to other drugs or underlying conditions.
- Hypokalemia: Lisinopril usually does not cause hypokalemia (low potassium levels). In fact, it is more likely to cause hyperkalemia (elevated potassium levels) due to its effects on aldosterone, which normally promotes potassium excretion. Monitoring potassium levels is essential to avoid hyperkalemia.
- Bradycardia: Bradycardia (slow heart rate) is not a common side effect of lisinopril. It is more often associated with other types of medications, such as beta-blockers or certain antiarrhythmics.
In summary, while lisinopril can be highly effective in managing heart failure, monitoring for hypotension is crucial to avoid potential complications related to excessively low blood pressure. Regular blood pressure checks and patient education on recognizing symptoms of hypotension are important components of safe and effective therapy with lisinopril.