The diagnosis of<unk>  requires the direct vision of exudates or pseudomembranes on the trachea. X-ray findings may include subglottic narrowing. The priority is to secure the patient's airway, and to rule out croup and epiglottitis which may be fatal. Suspicion for<unk>  should be high in cases of onset of airway obstruction that do not respond to racemic epinephrine.
Tracheitis
Croup
Bronchitis
Tracheobronchitis
Hydrothorax
Urinothorax
Mediastinitis
Chylothorax