A nurse is providing teaching to a client who has rheumatoid arthritis and is starting to take hydroxychloroquine. Which of the following client statements indicates an understanding of the teaching?

Choice A rationale While some medications should not be crushed to maintain their extended-release properties or prevent gastric irritation, hydroxychloroquine is typically available in a film-coated tablet form that can often be crushed if necessary for administration, provided there are no contraindications specified by the manufacturer. The primary concern with this medication is not related to crushing, but rather its systemic effects and potential for ocular toxicity. Choice B rationale Discontinuing hydroxychloroquine when symptoms subside is incorrect. Rheumatoid arthritis is a chronic inflammatory disease requiring long-term management to prevent joint damage and disease progression. Hydroxychloroquine can take several months to achieve its full therapeutic effect, and abrupt discontinuation can lead to a relapse of symptoms. Long-term use is necessary to maintain remission and control the inflammatory process. Choice C rationale Regular eye exams are crucial for clients taking hydroxychloroquine due to the risk of irreversible retinal damage, specifically retinopathy. Hydroxychloroquine can accumulate in the retina over time, leading to maculopathy. Early detection through baseline and subsequent annual ophthalmological examinations, including visual acuity, fundoscopy, and potentially visual field testing, is essential to prevent significant vision loss. This statement indicates an understanding of a major safety concern. Choice D rationale Taking a double dose of hydroxychloroquine after missing a dose is incorrect and dangerous. This practice increases the risk of overdose and potential toxicity, particularly to the eyes and heart. The correct procedure for a missed dose is to take it as soon as remembered unless it is almost time for the next dose, in which case the missed dose should be skipped to maintain a regular schedule and avoid doubling up.