The nurse is caring for a school-age child with Kawasaki disease who has experienced a history of a fever for 6 days. Which intervention should the nurse prioritize during the initial treatment phase of the illness?

Rationale: A. Obtain temperature assessment prior to aspirin administration: Monitoring temperature is important to evaluate the effectiveness of antipyretics. However, it does not address the risk of fluid imbalance or cardiovascular complications, which are more urgent in Kawasaki disease. B. Maintain meticulous oral hygiene and lubrication of lips: Oral care helps prevent discomfort from mucous membrane changes such as cracked lips and strawberry tongue. Although important for comfort, it is not the priority during the acute inflammatory phase. C. Provide passive range of motion exercises: Passive range of motion can prevent joint stiffness due to inflammation. While beneficial, musculoskeletal interventions are secondary to monitoring for complications related to cardiovascular status and hydration. D. Monitor fluid intake and output and daily weight: Monitoring intake, output, and weight is crucial because Kawasaki disease can cause systemic inflammation, edema, and potential cardiac complications like myocarditis or heart failure. Accurate fluid balance assessment helps prevent worsening cardiac function and guides clinical management in the acute phase.