Sublingual nitroglycerin is prescribed PRN for an older adult female client with a history of chest pain. The client shows the practical nurse (PN) a plastic pill box that she purchased so the medication can always be readily available in her purse. Which action should the PN take?

Choice A reason: Gum appearance is unrelated to carbamazepine’s side effects or sore throat. While some antiseizure drugs cause gingival hyperplasia, carbamazepine does not, and gum assessment does not clarify the sore throat’s cause, which may indicate infection or agranulocytosis, making this choice irrelevant.

Choice B reason: Bowel sounds assess gastrointestinal function, not relevant to a sore throat or carbamazepine’s effects. Sore throat may signal agranulocytosis, a rare side effect, but bowel sounds do not provide data on infection or hematologic issues, making this choice inappropriate.

Choice C reason: Carotid pulse volume evaluates cardiovascular status but is unrelated to sore throat or carbamazepine’s side effects. Sore throat may indicate infection or agranulocytosis, requiring systemic assessment like temperature, not vascular checks, making this choice irrelevant for the reported symptom.

Choice D reason: Temperature is critical, as sore throat may indicate infection or agranulocytosis, a rare but serious carbamazepine side effect causing low white blood cells. Fever suggests infection, necessitating urgent reporting. This assessment provides key data to differentiate causes, guiding timely intervention.

Choice A reason: Keratolytic agents, like salicylic acid, break down keratin in psoriatic plaques, softening scaly skin and reducing peeling. This promotes shedding of thickened, dead skin cells, improving skin texture. Softer, less scaly skin directly indicates the medication’s effect on hyperkeratotic lesions, confirming therapeutic success.

Choice B reason: Absence of purulent drainage indicates no infection but is not the primary goal of keratolytics. These agents target scale reduction, not infection. Psoriasis lesions are typically not purulent, so this finding is unrelated to the medication’s intended effect on skin texture.

Choice C reason: Reduced redness and swelling suggest decreased inflammation, which is not the primary action of keratolytics. Anti-inflammatory agents, like corticosteroids, target these symptoms, while keratolytics focus on scale removal. This finding is irrelevant to the medication’s specific role in psoriasis management.

Choice D reason: Full range of motion without pain relates to joint function, possibly in psoriatic arthritis, but is unrelated to keratolytics, which treat skin lesions. Keratolytics do not affect joint inflammation or mobility, making this choice incorrect for assessing the medication’s skin-specific effects.