Snapshot A 1-year-old toddler is brought to the emergency room for trouble breathing. His parents report that for the past few days, he has had low-grade fevers, nasal congestion, and a cough. Today, he did not appear to want to eat or drink any water. On physical exam, he is saturating 88% on room air. He has a prolonged expiratory phase and diffuse wheezes bilaterally. He has nasal flaring and intercostal retractions. He is given supplemental oxygen and admitted for further management. Introduction Classification login to view 4 more bullets Epidemiology login to view 10 more bullets Pathogenesis login to view 3 more bullets Prevention login to view 6 more bullets Prognosis login to view 2 more bullets Presentation Symptoms login to view 6 more bullets Physical exam login to view 8 more bullets Imaging Chest radiography login to view 4 more bullets Studies Making the diagnosis login to view 1 more bullet Differential Asthma login to view 3 more bullets Foreign body aspiration login to view 2 more bullets Treatment Conservative login to view 7 more bullets Complications Hypoxemic respiratory failure login to view 3 more bullets