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. The integumentary system may be involved in Kawasaki disease with skin changes, but the cardiovascular system is the most important system to monitor due to the risk of coronary artery aneurysms. B. Cardiovascular is correct. Kawasaki disease can lead to coronary artery aneurysms, myocarditis, and other cardiovascular complications. C. The gastrointestinal system is less involved but can show symptoms like abdominal pain, diarrhea, or vomiting. D. Respiratory involvement is not a primary concern in Kawasaki disease, although respiratory symptoms like cough may occur.