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Difficulty: HardInitial Stabilization and Triage

Emergency responders arrive at the trauma bay with a 45-year-old man who was just rescued from a residential house fire. He had been trapped in a smoke-filled, enclosed room for approximately 15 minutes before extraction. Upon arrival, the patient is awake but visibly anxious and restless. He complains of a severe sore throat and speaks with a noticeably hoarse voice. Physical examination reveals singed bilateral nasal hairs, carbonaceous sputum in the oropharynx, and superficial partial-thickness burns distributed over his face, anterior neck, and upper chest. Current vital signs include a temperature of 37.2°C (99.0°F), blood pressure of 138/86 mm Hg, heart rate of 112/min, and a respiratory rate of 26/min. His oxygen saturation is 98% while receiving supplemental oxygen at 15 L/min via a non-rebreather mask. Auscultation of the lungs reveals clear bilateral breath sounds, but harsh, high-pitched inspiratory sounds are prominently heard over the anterior neck. Which of the following is the most appropriate next step in the management of this patient?

  1. Perform endotracheal intubationAnswer
  2. B
    Initiate fluid resuscitation with lactated Ringer solution
  3. C
    Measure carboxyhemoglobin level via arterial blood gas
  4. D
    Obtain a portable chest radiograph
  5. E
    Admit to the intensive care unit for close airway observation

Answer

Perform endotracheal intubation
This patient presents with a severe thermal inhalation injury secondary to closed-space fire exposure. The presence of singed nasal hairs, carbonaceous sputum, a hoarse voice, and especially harsh, high-pitched inspiratory sounds (stridor) strongly indicates impending upper airway obstruction due to progressive mucosal edema. In the ABC (Airway, Breathing, Circulation) algorithm of emergency trauma and burn resuscitation, securing the airway is the absolute first priority. Because thermal airway edema can progress rapidly and unpredictably, making subsequent intubation extremely difficult or impossible, prophylactic endotracheal intubation must be performed immediately upon recognizing these clinical signs. This intervention is mandatory even if the patient is currently awake, maintaining normal oxygen saturation, and hemodynamically stable.

Step-by-Step Solution

1
Evaluate the clinical presentation for signs of thermal inhalation injury.
The patient exhibits singed nasal hairs, carbonaceous sputum, hoarseness, and harsh inspiratory sounds (stridor).
These findings are classic indicators of supraglottic thermal injury and progressive airway edema.
2
Apply the standard Advanced Trauma Life Support (ATLS) ABC prioritization framework.
Airway (A) takes absolute precedence over Breathing (B), Circulation (C), and diagnostic testing.
Failure to secure an at-risk airway can lead to a 'cannot intubate, cannot ventilate' scenario as edema worsens.
3
Determine the definitive intervention for impending airway obstruction.
Immediate endotracheal intubation is required.
Prophylactic intubation secures the airway before supraglottic swelling completely obliterates the vocal cords and surrounding structures.

Key Concept

Patients with thermal inhalation injury demonstrating objective signs of impending airway compromise (stridor, hoarseness, singed facial hair, soot in the oropharynx) require immediate prophylactic endotracheal intubation prior to any other diagnostic or resuscitative measures.
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Topics

Initial Stabilization and Triage

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