What common side effect should a nurse monitor in a client taking metoprolol (Lopressor)?

The choice of impotence as the common side effect to monitor in a client taking metoprolol is rooted in the pharmacological profile of beta-blockers. Metoprolol is a selective beta-1 adrenergic antagonist primarily used to manage conditions such as hypertension and heart failure. One of the side effects reported with the use of metoprolol, and other beta-blockers, is sexual dysfunction, particularly impotence. This can be attributed to its effects on blood flow and the sympathetic nervous system, which can lead to difficulties in achieving or maintaining an erection.

Monitoring for impotence is especially pertinent given the psychological impact it can have on patients, potentially affecting their adherence to treatment. Therefore, recognizing and addressing this side effect is crucial for maintaining the patient's overall well-being and treatment compliance.

The other options do not typically represent common side effects associated with metoprolol. Increased energy and weight loss are not expected outcomes, as beta-blockers can often lead to fatigue and weight gain. Vision changes are not commonly linked with this medication class, making impotence the most relevant side effect for monitoring in this context.