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Difficulty: MediumTrauma and Burns

A 34-year-old industrial worker is brought to the trauma bay after being involved in an accident with heavy machinery. On arrival, he has a pulsatile, massive hemorrhage from a mangled right leg. He is making gurgling sounds, his respiratory rate is 8/min, and he has a weak radial pulse of 130/min.

Arrange the following acute management steps in the correct chronological sequence according to current Advanced Trauma Life Support (ATLS) principles.

  1. 1Apply a mechanical tourniquet proximal to the right lower extremity injury.
  2. 2Suction the oropharynx and perform endotracheal intubation with in-line cervical stabilization.
  3. 3Auscultate bilateral breath sounds and apply continuous pulse oximetry.
  4. 4Insert two large-bore peripheral intravenous catheters and send blood for type and crossmatch.
  5. 5Calculate the Glasgow Coma Scale score and examine pupillary responses.

Answer

The correct sequence follows the updated ATLS <C>ABCDE paradigm: control of catastrophic external hemorrhage, followed by Airway, Breathing, Circulation, and Disability assessments.
The Advanced Trauma Life Support (ATLS) 10th edition update shifted the primary survey paradigm from ABCDE to <C>ABCDE. The <C> stands for Catastrophic hemorrhage. A patient with a pulsatile, massive arterial bleed will exsanguinate in minutes. Therefore, immediate mechanical hemorrhage control (e.g., tourniquet) precedes airway management. Once catastrophic bleeding is controlled, the traditional sequence resumes: Airway (suction, intubation with C-spine precautions), Breathing (auscultation, pulse oximetry), Circulation (IV access, blood type and crossmatch), and Disability (GCS and pupils).

Step-by-Step Solution

1
Identify the immediate threat to life.
The patient has pulsatile, massive hemorrhage from a mangled limb.
Current ATLS guidelines prioritize catastrophic hemorrhage control (<C>) above all else, requiring immediate tourniquet application.
2
Evaluate and secure the airway.
The patient has gurgling respirations and a low respiratory rate.
Once exsanguination is halted, the Airway (A) must be secured with intubation and cervical spine stabilization.
3
Assess breathing and ventilation.
Auscultation and continuous pulse oximetry are applied.
After securing the airway, Breathing (B) must be evaluated to ensure the lungs are exchanging gas and to rule out tension pneumothorax.
4
Establish circulation and resuscitation.
Intravenous access is obtained, and blood is sent for crossmatch.
With the <C>AB steps complete, standard Circulation (C) interventions begin to replace lost intravascular volume.
5
Perform a neurologic evaluation.
Glasgow Coma Scale and pupillary responses are recorded.
Disability (D) is assessed to identify acute traumatic brain injury once oxygenation and perfusion are maximized.

Key Concept

Advanced Trauma Life Support (ATLS) Primary Survey: <C>ABCDE approach
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Topics

Trauma and Burns

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