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Difficulty: MediumInitial Stabilization and Triage

A 34-year-old man is brought to the emergency department by emergency medical services after being rescued from a closed-space house fire. He was found trapped in a smoke-filled bedroom. On arrival, he is awake but agitated. Physical examination reveals partial- and full-thickness burns over his anterior chest and bilateral upper extremities. He has singed nasal vibrissae, carbonaceous sputum in the oropharynx, and a noticeably hoarse voice. Vital signs are temperature 37.1°C (98.8°F), blood pressure 110/70 mmHg, pulse 115/min, and respirations 28/min. Pulse oximetry shows an oxygen saturation of 94% on a 15 L/min non-rebreather face mask. Which of the following is the most appropriate immediate next step in the stabilization of this patient?

  1. Endotracheal intubationAnswer
  2. B
    Calculation of total body surface area burned and initiation of lactated Ringer solution
  3. C
    Arterial blood gas analysis with co-oximetry
  4. D
    Portable chest radiography
  5. E
    Diagnostic flexible bronchoscopy

Answer

The correct answer is endotracheal intubation.
The correct answer is endotracheal intubation. In any trauma or burn patient, the primary survey rigorously follows the ABCs (Airway, Breathing, Circulation). This patient presents with a history of closed-space fire exposure and physical findings highly indicative of thermal inhalation injury, including singed nasal vibrissae, carbonaceous sputum, and a newly hoarse voice. Thermal injury to the upper airway can lead to rapidly progressive, severe edema, resulting in complete airway obstruction. Because the airway can swell shut in a matter of minutes to hours, early and prophylactic endotracheal intubation is the most critical and immediate step. It secures the airway before it becomes anatomically impossible to intubate. Other diagnostic and therapeutic interventions, while important, must follow the establishment of a definitive airway.

Step-by-Step Solution

1
Identify the primary life threat based on the clinical presentation.
The patient's hoarse voice, singed nasal vibrissae, and carbonaceous sputum after a closed-space fire strongly suggest thermal inhalation injury to the upper airway.
Thermal injury causes rapid and progressive tissue edema that can quickly lead to complete upper airway obstruction.
2
Apply the initial trauma and burn resuscitation algorithm.
The ABCs (Airway, Breathing, Circulation) mandate that airway management takes ultimate precedence.
Without a patent airway, all other resuscitative and diagnostic efforts will fail to prevent hypoxemia and death.
3
Determine the most appropriate intervention for the identified threat.
Early endotracheal intubation is selected.
Prophylactic intubation secures the airway definitively before progressive swelling makes the procedure anatomically difficult or impossible.

Key Concept

In patients with clinical signs of thermal inhalation injury (e.g., singed facial hair, soot in the oropharynx, hoarseness), early and prophylactic endotracheal intubation is the immediate priority to prevent complete airway obstruction from progressive edema.
Estimated Time:1m 15s
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Topics

Initial Stabilization and Triage

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