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Difficulty: MediumInitial Stabilization and Triage

A 19-year-old male university student is transported to the trauma bay after falling approximately 15 feet from a balcony. Paramedics note that he was initially conversing and complaining of a severe headache, but his mental status rapidly deteriorated en route. Upon arrival, he is deeply obtunded and withdraws only to painful stimuli. Vital signs are temperature 37.0∘C37.0^\circ\text{C} (98.6∘F98.6^\circ\text{F}), blood pressure 185/105 mmHg185/105\text{ mmHg}, pulse 42/min42/\text{min}, and respirations 6/min6/\text{min} and irregular. Physical examination reveals a right pupil that is 7 mm7\text{ mm} and unreactive to light; the left pupil is 3 mm3\text{ mm} and briskly reactive. Intravenous access was established in the field. Arrange the following patient management steps in the most appropriate chronological order.

  1. 1Perform endotracheal intubation
  2. 2Administer intravenous hyperosmolar therapy (e.g., mannitol or hypertonic saline)
  3. 3Obtain a noncontrast computed tomography (CT) scan of the head
  4. 4Transfer to the operating room for neurosurgical evacuation

Answer

The sequence must strictly follow the Advanced Trauma Life Support (ATLS) protocol: first secure the airway, second medically temporize the active brain herniation, third obtain diagnostic neuroimaging, and fourth proceed to definitive surgical intervention.
The sequence aligns with standard trauma resuscitation guidelines. Airway protection is always the initial step for a patient lacking airway reflexes or adequate ventilation. Subsequently, the acute clinical presentation of uncal herniation (asymmetric pupils and Cushing reflex) demands immediate empiric treatment with osmotic agents to lower intracranial pressure. Only after these immediate stabilizing measures should the patient be transported for diagnostic imaging (CT head) to delineate the anatomy of the injury, which then guides the definitive neurosurgical intervention.

Step-by-Step Solution

1
Assess the airway and breathing.
Patient has depressed consciousness and irregular, slow respirations.
Airway compromise is the most immediate threat to life. Endotracheal intubation must be performed first.
2
Assess circulatory and neurologic status.
Patient demonstrates Cushing's triad (hypertension, bradycardia, irregular breathing) and a unilateral fixed/dilated pupil.
These are classic signs of uncal herniation. Medical interventions to decrease intracranial pressure (osmotic agents) must be administered concurrently with or immediately following airway management.
3
Perform diagnostic evaluation.
A noncontrast CT scan of the head is obtained.
Diagnostic imaging is required to confirm the presence, type, and exact location of the hemorrhage (e.g., epidural hematoma) before surgery can be performed.
4
Provide definitive treatment.
Neurosurgical decompression in the operating room.
Medical management only temporizes herniation; surgical evacuation of the hematoma is the definitive life-saving therapy.

Key Concept

In patients with severe traumatic brain injury and active herniation, the correct sequence is securing the airway, administering empiric hyperosmolar therapy, obtaining diagnostic imaging, and performing definitive surgical decompression.
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Topics

Initial Stabilization and Triage

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