FIGURE 106.3 Chest radiograph of a child with bronchial foreign body A: Inspiratory film demonstrates only subtle hyperaeration of right lung B: Expiratory film shows accentuated hyperaeration on the right side secondary to air trapping (“check-valve” phenomenon) by the foreign body in the right mainstem bronchus In addition, the mediastinum is displaced to the left LARYNGEAL AND TRACHEAL TRAUMA Goals of Treatment Blunt and penetrating laryngeal and tracheal should be promptly identified to prevent and reverse any respiratory compromise from obstruction or bleeding The primary goal for the emergency clinicians is to determine who requires urgent airway management and how to most safely accomplish this Fiberoptic