A nurse is reinforcing education to a family with a child who has Kawasaki disease. Which of the following statements made by the caregiver indicates an understanding of the education provided?

A. "Kawasaki disease is an abnormal immune response that only affects the liver." This is incorrect. Kawasaki disease primarily affects the blood vessels, especially the coronary arteries, not just the liver. While liver inflammation can occur, it is not the main concern. B. "Kawasaki disease is an abnormal immune response that causes injury to the body's muscles." This is incorrect. Kawasaki disease is a vasculitis (inflammation of blood vessels), not a muscle disorder. It mainly affects the heart and blood vessels, potentially leading to aneurysms and long-term cardiac complications. C. "Kawasaki disease is an abnormal immune response in which the body attacks the skin only." This is incorrect. While skin changes (such as a rash, peeling skin, and red palms/soles) are common symptoms, the primary concern is inflammation of the coronary arteries, which can lead to serious heart complications. D. "Kawasaki disease is an abnormal immune system response that can weaken the coronary arteries." This is correct. Kawasaki disease triggers inflammation in medium-sized arteries, particularly the coronary arteries, which supply blood to the heart. If untreated, this can lead to coronary artery aneurysms, myocardial infarction, or long-term heart disease.