A client with newly diagnosed Crohn’s disease asks the nurse about dietary restrictions. How should the nurse respond?

Choice A reason: Assessing body temperature monitors for infection but is not specific to vancomycin administration. Clostridium difficile causes fever, but oral vancomycin’s safety depends on renal function, as it is minimally absorbed but can accumulate in renal impairment, making temperature less critical before the first dose.

Choice B reason: Checking serum creatinine is essential, as vancomycin, even orally, can be absorbed in small amounts, risking nephrotoxicity in patients with renal impairment. Clostridium difficile treatment requires ensuring renal function is adequate to prevent drug accumulation, which could exacerbate kidney damage, making this the priority action.

Choice C reason: Measuring oxygen saturation assesses respiratory status, irrelevant to oral vancomycin for Clostridium difficile, which primarily affects the gut. While severe infections may cause systemic symptoms, oxygenation is not a direct concern for vancomycin’s safety or efficacy, making this choice inappropriate.

Choice D reason: Auscultating bowel sounds evaluates gastrointestinal motility, relevant to Clostridium difficile’s diarrheal effects but not vancomycin’s administration safety. Oral vancomycin targets gut bacteria, and bowel sounds do not indicate renal or systemic risks, making this less critical than renal function assessment.

Choice A reason: Switching to decaffeinated coffee and tea reduces acid stimulation, but it does not address the misconception about dairy coating ulcers. Dairy increases acid production, worsening ulcers, making this action less critical than correcting the client’s harmful dietary plan.

Choice B reason: Frequent small meals reduce acid load, aiding ulcer management, but the client’s dairy plan increases acid secretion, negating benefits. Correcting the dairy misconception is more urgent, as it directly worsens the ulcer, making this suggestion secondary.

Choice C reason: Reviewing the need to avoid milk and cream is best, as dairy stimulates gastric acid via gastrin release, worsening duodenal ulcers. The client’s plan to use dairy for coating is incorrect, and correcting this prevents exacerbation, aligning with evidence-based ulcer management.

Choice D reason: Reinforcing dairy use by listing snacks is harmful, as milk and cream increase acid production, aggravating ulcers. This action perpetuates the client’s misconception, worsening the condition, making it incorrect compared to correcting the dietary error.