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Review Question - QID 213616

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QID 213616 (Type "213616" in App Search)
A 3-year-old boy is brought to the emergency department for fever and rash. The mother reports that 2 days ago she noticed her son was fussier and warmer than usual. She measured his temperature and it was 39.4°C (102.9°F). Oral acetaminophen did not reduce his fever over the ensuing day. Today she noticed a diffuse red rash throughout his body and some swelling of his hands and feet. The mother denies any new environmental exposures. His temperature is 102.2°F (39°C), blood pressure is 135/82mmHg, pulse is 101/min, and respirations are 14/min. A physical examination demonstrates a diffuse urticarial, maculopapular rash at the trunk and tongue findings shown in Figure A. What is the most appropriate treatment for this patient?
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