Look for evidence of exposure
Estimated time of exposure
Open or enclosed space
Associated events such as fire, blast, etc.?
Is the exposure known?
Material on patient? Does patient smell of chemical?
Estimated time of exposure
Open or enclosed space
Associated events such as fire, blast, etc.?
Is the exposure known?
Material on patient? Does patient smell of chemical?
Physical examination with focus on airway and pulmonary system
Observe for evidence of airway compromise or respiratory distress
Chest x-ray, pulse oximetry, arterial blood gas
Consider carboxyhemoglobin and/or cyanide level if any suspicion based on history
Inhalation injury
Smoke inhalation injury
Cyanide
Thoracic trauma
Carbon monoxide
Trachobronchial injury
Chloramine
Parapharyngeal space infection