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Emergency Medicine32 papers

Injury of respiratory system

Last edited: 4/15/2026

Overview

Smoke inhalation injury involves respiratory damage due to exposure to toxic gases and particulate matter, leading to acute respiratory distress and potential long-term complications 1.

Diagnosis

  • Clinical Presentation: Symptoms include cough, dyspnea, soot in sputum, and signs of carbon monoxide poisoning 1.
  • Diagnostic Tests: Pulse oximetry, arterial blood gas analysis, carboxyhemoglobin levels, chest radiography, and bronchoscopy may be necessary 1.
  • Grading: Severity often assessed based on clinical symptoms, carboxyhemoglobin levels, and imaging findings, though standardized grading systems vary 1.

    • Management

  • Immediate Actions: Removal from smoke environment, supplemental oxygen, and monitoring for signs of respiratory failure 1.
  • Decontamination: Endotracheal intubation and mechanical ventilation if needed, bronchoscopy for removal of soot and debris 1.
  • Carbon Monoxide Treatment: Administration of 100% oxygen or hyperbaric oxygen therapy for severe cases 1.
  • Supportive Care: Fluid management, pain control, and monitoring for secondary infections 1.

    • Special Populations

  • Pregnancy: Close monitoring of maternal and fetal status; oxygen therapy and supportive care tailored to avoid undue stress 1.
  • Pediatrics: Increased vigilance for respiratory distress; pediatric-specific ventilation protocols 1.
  • Elderly: Focus on managing comorbidities and providing supportive care to mitigate respiratory complications 1.
  • Comorbidities: Tailored management considering underlying conditions like COPD or asthma, with intensified monitoring and intervention 1.

    • Key Recommendations

  • Initiate immediate removal from smoke exposure and provide supplemental oxygen to all affected patients (Evidence: Strong 1).
  • Measure carboxyhemoglobin levels to assess the severity of carbon monoxide poisoning and guide treatment intensity (Evidence: Moderate 1).
  • Consider hyperbaric oxygen therapy for patients with severe smoke inhalation and high carboxyhemoglobin levels (Evidence: Expert opinion 1).

    • References

    1 Thom SR. Smoke inhalation. Emergency medicine clinics of North America 1989. link

    Original source

    1. [1]
      Smoke inhalation. — Thom SR Emergency medicine clinics of North America (1989)
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