A nurse is reviewing the BUN result of a client who is taking cyclosporine following a kidney transplant. Which of the following laboratory studies should the nurse recognize as another renal function study that should be monitored?

Choice A reason: Administering atomoxetine, used for ADHD, is inappropriate for panic attacks, which require short-acting anxiolytics like benzodiazepines if medicated. This medication does not address acute anxiety and may worsen symptoms, making it incorrect and potentially harmful.
Choice B reason: Encouraging television watching may distract but does not address the acute distress of a panic attack. It lacks the calming, supportive presence needed to reduce anxiety, making it less effective and inappropriate compared to direct emotional support.
Choice C reason: Sitting with the client provides a calming presence, reducing fear and enhancing security during a panic attack. This therapeutic intervention supports emotional regulation and aligns with evidence-based anxiety management, making it the correct and most effective action.
Choice D reason: Instructing strenuous exercise during a panic attack can exacerbate symptoms like tachycardia and breathlessness, worsening anxiety. Calming techniques like deep breathing are preferred, so this action is counterproductive and potentially harmful, making it incorrect.

Choice A reason: Limiting potassium intake is dangerous with digoxin, as low potassium (hypokalemia) increases the risk of digoxin toxicity by enhancing drug binding to cardiac cells. Adequate potassium levels are critical for safe use, as digoxin affects cardiac contractility, making this instruction incorrect and potentially harmful.
Choice B reason: Repeating a digoxin dose if the child vomits within 1 hour is unsafe without medical consultation, as it risks overdose. Digoxin has a narrow therapeutic index, and toxicity can cause arrhythmias. Parents should contact the provider for guidance, making this instruction incorrect and dangerous.
Choice C reason: Adding digoxin to juice risks inaccurate dosing, as the child may not consume the full amount, leading to underdosing or toxicity if additional doses are given. Precise administration (e.g., via syringe) ensures correct dosing, critical for digoxin’s narrow therapeutic range, making this instruction inappropriate.
Choice D reason: Having the child drink water after digoxin ensures the dose is fully swallowed, preventing loss from spitting or incomplete ingestion. This supports accurate dosing, essential for digoxin’s safe use in heart failure, where it enhances cardiac output. This instruction is safe and effective, making it correct.