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Difficulty: Very hardTrauma and Burns

A 31-year-old woman is brought to the trauma center by emergency medical services after a high-speed head-on motor vehicle collision. At the scene, she was unresponsive and intubated for airway protection. Upon arrival, her temperature is 36.1°C (97.0°F), blood pressure is 76/40 mmHg, and heart rate is 142/min. She is receiving mechanical ventilation. Glasgow Coma Scale score is 3T. Pupillary examination reveals a 7-mm nonreactive right pupil and a 3-mm reactive left pupil. Breath sounds are equal bilaterally. The pelvis is mechanically stable on anteroposterior compression. There are no obvious external sources of bleeding. A focused assessment with sonography for trauma (FAST) examination reveals a large anechoic stripe in the hepatorenal recess. Which of the following is the most appropriate next step in the management of this patient?

  1. Immediate exploratory laparotomyAnswer
  2. B
    Emergent computed tomography of the head and cervical spine
  3. C
    Emergent computed tomography of the abdomen and pelvis
  4. D
    Intravenous administration of mannitol
  5. E
    Await telephone consent from next-of-kin prior to surgical intervention

Answer

Immediate exploratory laparotomy is the most appropriate next step to achieve hemorrhage control in this hemodynamically unstable patient.
The correct action is immediate exploratory laparotomy. This patient has two immediate life threats: profound hemorrhagic shock from intra-abdominal bleeding (confirmed by a positive FAST) and severe traumatic brain injury with signs of uncal herniation (blown pupil, GCS 3). According to ATLS principles, circulation and hemorrhage control take absolute precedence. A patient cannot survive a craniotomy, nor tolerate a trip to the CT scanner, if they exsanguinate. The priority is to establish source control in the operating room. Often in such extreme cases, a simultaneous laparotomy and craniotomy may be performed, but the laparotomy cannot be delayed for neurologic diagnostics.

Step-by-Step Solution

1
Assess the patient's hemodynamic status.
The patient is in Class III/IV hemorrhagic shock, evidenced by a blood pressure of 76/40 mmHg and a heart rate of 142/min.
Hemodynamic instability dictates the entire trauma algorithm, shifting focus from comprehensive diagnostics to immediate life-saving interventions.
2
Interpret the diagnostic adjuncts.
The FAST examination is positive for free fluid in Morison's pouch (hepatorenal recess).
In the setting of blunt trauma and shock, a positive FAST confirms that intra-abdominal hemorrhage is the primary cause of the hemodynamic instability.
3
Evaluate competing clinical priorities (Traumatic Brain Injury vs. Hemorrhagic Shock).
The patient has signs of uncal herniation (GCS 3T, asymmetric blown pupil) alongside exsanguinating intra-abdominal hemorrhage.
Complex trauma often presents with competing life-threatening injuries requiring prioritization.
4
Determine the definitive next step based on Advanced Trauma Life Support (ATLS) principles.
The patient must be taken directly to the operating room for an exploratory laparotomy.
Restoration of circulating blood volume and source control of hemorrhage takes absolute precedence. Neurologic interventions (CT scan, craniotomy) cannot be prioritized over restoring perfusion, as the ischemic brain will not survive ongoing catastrophic hemorrhagic shock.

Key Concept

In patients with multiple severe injuries, hemodynamic stabilization and control of massive hemorrhage (via exploratory laparotomy for a positive FAST) take precedence over diagnostic imaging or intervention for traumatic brain injury.
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Trauma and Burns

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