4 Days Of Fever in Pediatrics — Case | Pediatric Respiratory | SMLE Q#600
SMLE Question #600
Pediatrics
Pediatric Respiratory
Last updated: February 2026
A previously healthy 1-year-old boy is brought to the emergency department with 4 days of fever and cough and 24 hours of increasing work of breathing and poor feeding. He has intercostal retractions and nasal flaring with coarse breath sounds and fine crackles bilaterally. Chest X-ray shows bilateral perihilar interstitial infiltrates without focal lobar consolidation, pleural effusion, or cavitation. What is the most likely diagnosis?
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