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Difficulty: HardInitial Stabilization and Triage

Paramedics transport a 24-year-old man to the emergency department after he dove headfirst into a shallow lake. Bystanders successfully pulled him from the water.

Upon arrival, the patient is awake, alert, and speaking clearly. He reports a complete inability to move his arms or legs. His breathing pattern is shallow and entirely diaphragmatic.

Vital signs are as follows:
Temperature: 36.0°C (96.8°F)
Blood pressure: 72/42 mm Hg
Heart rate: 48/min
Respiratory rate: 26/min
Oxygen saturation: 92% on room air

Physical examination reveals flaccid paralysis with 0/5 motor strength in all four extremities. Sensation to pain and temperature is absent below the clavicles. His skin is warm and flushed throughout all extremities.

Based on trauma and shock management principles, arrange the following acute resuscitation steps in the correct prioritized sequence from first to last.

  1. 1Maintain strict cervical spine immobilization and optimize oxygenation.
  2. 2Establish intravenous access and administer an isotonic crystalloid fluid bolus.
  3. 3Initiate an intravenous vasopressor infusion to maintain a mean arterial pressure greater than 85 mm Hg.
  4. 4Transport the patient for a computed tomography (CT) scan of the entire spine.
  5. 5Consult spine surgery for evaluation of emergent operative decompression.

Answer

The correct sequence is: C-spine immobilization/oxygenation, followed by crystalloid fluid bolus, then vasopressor infusion, then CT scan of the spine, and finally spine surgery consultation.
The correct sequence strictly adheres to the Advanced Trauma Life Support (ATLS) protocol for neurogenic shock. The primary survey begins with Airway/Breathing and cervical spine protection. Circulation is addressed next, sequentially starting with fluids (to fill the vascular tank and rule out hemorrhage) followed by vasopressors (to squeeze the excessively dilated vessels and maintain a MAP > 85 mm Hg). Once the patient is hemodynamically stable, secondary survey actions such as definitive CT imaging and surgical consultation are performed.

Step-by-Step Solution

1
Identify the clinical syndrome from the presentation.
The patient has hypotension, bradycardia, warm extremities, and high cervical neurologic deficits (quadriplegia, diaphragmatic breathing), which classically indicates neurogenic shock.
Recognizing the loss of sympathetic vascular tone explains the paradoxical bradycardia and warm skin in the setting of profound hypotension.
2
Apply the primary survey principles (ABCDE).
Cervical spine immobilization and respiratory support are prioritized as the immediate first steps.
Although the airway is currently patent, high cervical injuries compromise respiratory drive (diaphragmatic breathing) and the spine must be protected from further mechanical injury.
3
Address the patient's profound hemodynamic instability (Circulation).
An isotonic crystalloid fluid bolus is administered first.
Volume resuscitation is necessary to ensure adequate preload and rule out concurrent hypovolemia, as trauma patients frequently have occult bleeding.
4
Provide targeted hemodynamic support for the specific shock etiology.
An intravenous vasopressor is initiated to target a Mean Arterial Pressure (MAP) greater than 85 mm Hg.
Vasopressors correct the severe systemic vasodilation of neurogenic shock and maintain the high perfusion pressures required to prevent secondary ischemic injury to the spinal cord.
5
Proceed to diagnostic and definitive care.
The patient is transported for a CT scan, followed by a spine surgery consultation.
Imaging and specialty consultation can only safely occur after the primary survey is complete and the patient's hemodynamics are stabilized.

Key Concept

In neurogenic shock, initial stabilization prioritizes cervical spine immobilization and airway support, followed sequentially by intravenous fluids to ensure preload, and then vasopressors to maintain a MAP > 85 mm Hg for spinal cord perfusion. Definitive imaging and specialty consultation strictly follow hemodynamic stabilization.
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Topics

Initial Stabilization and Triage

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