After checking a client's pupillary response to light, the practical nurse (PN) tells the registered nurse (RN) that the client's pupils are constricted with minimal response to light. Before verifying the PN's findings, which action should the RN take?

Choice A reason: Increasing room light may not significantly affect pupillary response if the cause is pharmacologic or neurologic. Choice B reason: Visual field testing assesses peripheral vision and is unrelated to pupillary light reflex. Choice C reason: Reviewing the medication list is essential because certain drugs (e.g., opioids, miotics) can cause pupillary constriction and sluggish reactivity. Choice D reason: Saline eye drops may relieve dryness but do not influence pupil size or reactivity.