Aortic valve disease Quiz: Ace Your Exams
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A 9-year-old boy is brought to his primary care physician’s office for evaluation of a skin rash and fatigue. He is in good health and achieved all childhood milestones. He did not receive any of the childhood vaccines per parental request. A few weeks ago he had a sore throat and fever that resolved without treatment. Temperature is 37.0°C (98.6°F), pulse is 80/min, and blood pressure is 135/85 mmHg. On physical examination, the posterior pharynx is without erythema or exudate. The lungs are clear to auscultation. A blowing, holosystolic murmur is heard over the left sternal border. Examination of the skin demonstrates an erythematous rash over the torso and limbs. Which of the following best describes the mechanism underlying this patient’s clinical condition?
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