Assess ABCs, burns resuscitation
ABG or VBG, carboxyhemoglobin
ECG, monitor on telemetry
Chest x-ray
Low threshold for direct or video laryngoscopy, fiberoptic airway eval
Smoke inhalation injury
Smoke inhalation injury 
Inhalation injury
Chemical injury
Carbon monoxide toxicity
Acrolein
Thoracic trauma
Hydrochloric acid