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Difficulty: MediumInitial Stabilization and Triage

A 34-year-old woman is brought to the emergency department by paramedics after being struck by a commercial delivery truck while in a crosswalk. She was thrown approximately 8 meters. Upon arrival, she is obtunded with gurgling, inadequate respirations. Vital signs are temperature 35.8°C (96.4°F), blood pressure 70/30 mmHg, pulse 148/min, and respirations 36/min. Physical examination reveals marked tracheal deviation to the left and hyperresonance with completely absent breath sounds over the right hemithorax. Her extremities are cold, and her pelvis feels mechanically unstable on gentle palpation.

Arrange the following initial stabilization steps in the correct chronological sequence according to the Advanced Trauma Life Support (ATLS) primary survey protocol.

  1. 1Secure a definitive airway (e.g., endotracheal intubation) with continuous cervical spine immobilization.
  2. 2Decompress the right hemithorax using a needle or tube thoracostomy.
  3. 3Obtain large-bore intravenous or intraosseous access and initiate a massive transfusion protocol.
  4. 4Perform a targeted neurologic assessment, including pupillary reflex and Glasgow Coma Scale (GCS) scoring.
  5. 5Remove all remaining clothing to expose hidden injuries, followed by the application of warm blankets.

Answer

The correct sequence follows the ATLS algorithm: 1) Secure the airway with C-spine protection, 2) Decompress the right hemithorax, 3) Obtain access and initiate massive transfusion, 4) Perform a targeted neurologic assessment, 5) Expose the patient and apply warm blankets.
The Advanced Trauma Life Support (ATLS) primary survey dictates a strict chronological approach to trauma resuscitation, prioritizing conditions that kill the fastest. The sequence is Airway, Breathing, Circulation, Disability, and Exposure (ABCDE). First, the patient's gurgling respirations and obtunded state necessitate securing the Airway with cervical spine protection. Second, the tracheal deviation and absent breath sounds indicate a tension pneumothorax, requiring immediate Breathing stabilization via decompression. Third, hemodynamic shock (Circulation) must be addressed with access and blood products; this is done only after decompression, as tension physiology physically obstructs venous return and renders volume resuscitation ineffective. Fourth, Disability is assessed via GCS and pupillary reflexes once oxygenation and perfusion are initially restored. Finally, Exposure ensures no hidden injuries are missed while actively preventing hypothermia.

Step-by-Step Solution

1
Assess the immediate threats to life based on the patient's presentation.
The patient has multiple life-threatening conditions: unprotected airway, tension pneumothorax, and profound hemorrhagic shock.
Trauma resuscitation requires prioritizing injuries that cause death most rapidly.
2
Apply the first step of the ATLS primary survey (Airway with cervical spine protection).
Securing a definitive airway with cervical immobilization is placed first.
An unprotected airway (indicated by gurgling and obtundation) will lead to fatal hypoxia faster than any other injury.
3
Apply the second step of the ATLS primary survey (Breathing and ventilation).
Decompressing the right hemithorax is placed second.
A tension pneumothorax causes obstructive shock and prevents effective oxygenation. It must be relieved to allow venous return before circulatory interventions.
4
Apply the third step of the ATLS primary survey (Circulation and hemorrhage control).
Obtaining access and initiating the massive transfusion protocol is placed third.
Once the mechanical obstruction to the heart is relieved, restoring intravascular volume treats the profound hemorrhagic shock.
5
Apply the final steps of the ATLS primary survey (Disability, then Exposure).
Neurologic assessment is placed fourth, followed by complete exposure and warming.
Neurologic status is only accurate after addressing hypoxia and hypotension. Exposure completes the primary survey to identify any hidden life threats.

Key Concept

The initial stabilization of a severe polytrauma patient strictly follows the ABCDE (Airway, Breathing, Circulation, Disability, Exposure) primary survey algorithm, prioritizing interventions based on the most immediate threats to life.
Estimated Time:1m 30s
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Topics

Initial Stabilization and Triage

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