Marcus is an 8-year-old with a 36-hour complaint of headache (frontal), sore throat, fever to 102°F, and nausea. Mom says his appetite is decreased and his breath smells “like a puppy dog’s.” Physical examination reveals: lungs clear to auscultation, tymp

Marcus is an 8-year-old with a 36-hour complaint of headache (frontal), sore throat, fever to 102°F, and nausea. Mom says his appetite is decreased and his breath smells “like a puppy dog’s.” Physical examination reveals: lungs clear to auscultation, tympanic membranes partially obscured by cerumen but in neutral position and transparent, enlarged tonsilar and anterior cervical lymph nodes, 2+ enlarged and red tonsils with exudate, strawberry tongue, and petechiae on the soft palate.