A 28-year-old male construction worker is brought to the emergency department after fallin… — USMLE Step 3

A $28$ -year-old male construction worker is brought to the emergency department after falling approximately $6$ meters ( $20$ feet) from scaffolding. He landed directly on his head and upper back. Emergency medical services placed him in a rigid cervical collar and on a long backboard. Upon arrival, the patient is awake and alert, reporting severe posterior neck pain and an inability to move his arms or legs.

Vital signs are:
Temperature: $36.2^\circ\text{C}$ ( $97.2^\circ\text{F}$ )
Blood pressure: $74/42\text{ mmHg}$
Heart rate: $48\text{/min}$
Respiratory rate: $10\text{/min}$ with shallow, abdominal breathing
Oxygen saturation: $87\%$ on room air

Physical examination reveals flaccid paralysis, absent deep tendon reflexes, and loss of pain and temperature sensation below the level of the clavicles. His extremities are remarkably warm and flushed.

Arrange the following management steps in the most appropriate sequential order of priority for this patient's initial stabilization and triage.

1Secure the airway via endotracheal intubation with manual in-line stabilization.
2Establish large-bore intravenous access and administer an isotonic fluid bolus.
3Initiate an intravenous infusion of a vasopressor to maintain spinal cord perfusion.
4Perform a comprehensive neurological examination to define the injury level.
5Transport the patient to the radiology suite for magnetic resonance imaging (MRI).

Answer

The correct sequence prioritizes the Advanced Trauma Life Support (ATLS) algorithm: secure the airway first, followed by volume resuscitation for circulation, then vasopressors for refractory neurogenic shock, followed by a comprehensive neurologic assessment, and finally definitive diagnostic imaging.

In trauma and critical care, management must follow a strict algorithmic approach to prevent immediate death. This patient has a high cervical spinal cord injury presenting with both impending respiratory failure (loss of phrenic nerve function) and neurogenic shock (loss of sympathetic tone causing vasodilation and bradycardia). According to the primary survey, securing the airway and ensuring adequate ventilation is the first indispensable step. Once the airway is secured, the profound hypotension must be addressed through a sequential approach of initial fluid resuscitation followed by vasopressor support to restore mean arterial pressure and prevent secondary ischemic damage to the spinal cord. Only after the patient is hemodynamically stable should the physician focus on the secondary survey (detailed neurological examination) and definitively diagnosing the anatomic lesion (MRI).

Step-by-Step Solution

Secure the airway via endotracheal intubation with manual in-line stabilization.

Prevention of respiratory arrest from diaphragmatic paralysis.

The patient's bradypnea and hypoxia indicate impending respiratory failure due to high cervical spinal cord injury. Airway (A) and Breathing (B) always take absolute precedence.

Establish large-bore intravenous access and administer an isotonic fluid bolus.

Initial correction of relative hypovolemia.

Moving to Circulation (C), the patient presents with neurogenic shock (hypotension, bradycardia, warm extremities). Initial management requires crystalloid fluid administration to optimize preload.

Initiate an intravenous infusion of a vasopressor to maintain spinal cord perfusion.

Restoration of vascular tone and mean arterial pressure (MAP).

Neurogenic shock causes a loss of sympathetic tone. Once initial volume is given, vasopressors are critical to maintain a MAP of

85-90\text{ mmHg}

to prevent secondary ischemic injury to the spinal cord.

Perform a comprehensive neurological examination to define the injury level.

Documentation of baseline neurologic deficits.

With ABCs stabilized, the Disability (D) component and secondary survey can be completed to formalize the extent of the spinal cord injury.

Transport the patient to the radiology suite for magnetic resonance imaging (MRI).

Identification of the specific anatomical injury (e.g., cord compression, ligamentous tear).

Definitive imaging can only be safely performed once the patient is hemodynamically stable and the airway is secured.

Key Concept

Initial stabilization of neurogenic shock and high cervical spine injuries requires strict adherence to the ABCDE trauma algorithm, prioritizing airway protection and hemodynamic resuscitation prior to comprehensive neurologic assessment and advanced imaging.

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