A nurse is teaching about adverse effects with a client who is starting to take captopril. Which of the following findings should the nurse identify as an adverse effect of the medication to report to the provider?

A is incorrect because tinnitus, or ringing in the ears, is not an adverse effect of captopril, but rather a symptom of other conditions such as ear infection, noise exposure, or medication toxicity. B is correct because cough is a serious adverse effect of captopril, which is an angiotensin-converting enzyme (ACE) inhibitor that can cause angioedema, or swelling of the airways. C is incorrect because polyuria, or excessive urination, is not an adverse effect of captopril, but rather a symptom of other conditions such as diabetes mellitus, diabetes insipidus, or diuretic use. D is incorrect because blurred vision is not an adverse effect of captopril, but rather a symptom of other conditions such as eye strain, refractive error, or cataract.