NCC Pediatrics Residency @ Walter Reed Bethesda

3. A 2-year-old boy comes to the emergency department because of a barking cough. His mother reports that he has no fever or shortness of breath, but you note a barking, seal-like cough. His respiratory rate is 20 breaths/min, and there is no stridor. His lungs are clear, and other findings on the physical examination are normal. ................
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