A nurse is caring for a child who has Kawasaki disease. Which of the following systems should the nurse monitor in response to this diagnosis?

A. While gastrointestinal symptoms like vomiting and diarrhea can occur, the primary concern in Kawasaki disease is cardiovascular. B. Respiratory involvement is not typically the primary concern in Kawasaki disease, though respiratory symptoms may occur. C. Kawasaki disease primarily affects the cardiovascular system, leading to inflammation of blood vessels and increased risk for coronary artery aneurysms. D. The integumentary system (e.g., rash) is affected in Kawasaki disease, but cardiovascular monitoring is the most critical aspect.