A nurse is administering the disease-modifying anti-rheumatic medication hydroxychloroquine to a client who has rheumatoid arthritis. Which of the following potential health conditions should the nurse inform the client may occur?

Choice A rationale Hydroxychloroquine (HCQ) is an anti-malarial and disease-modifying anti-rheumatic drug (DMARD). While it can have gastrointestinal side effects, significant weight fluctuations are not a common or primary reported adverse effect requiring specific client monitoring or education. The main concern with this medication involves toxicity to sensory organs. Choice B rationale HCQ can cause irreversible retinal damage, known as retinopathy, which is a cumulative dose-dependent toxicity. The drug concentrates in melanin-containing tissues, leading to bull's eye maculopathy that can cause vision loss. Because of this serious potential for eye problems, baseline and subsequent annual ophthalmologic examinations are mandatory for safe use. Choice C rationale HCQ generally has a favorable gastrointestinal profile compared to other DMARDs. Although some patients may experience mild nausea or diarrhea, the development of severe gastric or peptic ulcers is not a characteristic or prominent adverse effect of hydroxychloroquine, unlike non-steroidal anti-inflammatory drugs (NSAIDs). Choice D rationale Hydroxychloroquine actually has a beneficial side effect of improving the lipid profile by lowering total cholesterol and low-density lipoprotein (LDL) levels, rather than causing high cholesterol. Therefore, informing the client about high cholesterol as a potential problem would be scientifically inaccurate.