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Difficulty: MediumTrauma and Burns

Emergency medical responders transport a 42-year-old bicyclist to the trauma center following a high-speed collision with a delivery van. Upon arrival, the patient is agitated, diaphoretic, and confused. Vital signs show a temperature of 36.4°C (97.5°F), blood pressure of 76/40 mm Hg, heart rate of 138/min, and respiratory rate of 28/min. Physical examination reveals extensive ecchymoses over the left lower thorax and a rigid, distended abdomen with diffuse rebound tenderness. The pelvis is stable to anteroposterior compression. A Focused Assessment with Sonography for Trauma (FAST) reveals a large anechoic stripe in the splenorenal and hepatorenal recesses. The patient's personal belongings include a legally executed advance directive designating his sister as his healthcare proxy. His father arrives at the trauma bay simultaneously and demands to make all treatment decisions. What is the most appropriate next step in management?

  1. Proceed immediately to the operating room for an exploratory laparotomyAnswer
  2. B
    Transfer the patient to radiology for a computed tomography scan of the abdomen and pelvis
  3. C
    Admit to the intensive care unit for volume resuscitation and serial abdominal examinations
  4. D
    Postpone any invasive procedures until formal consent is obtained from the patient's father
  5. E
    Discuss the abdominal ultrasound findings with the father to obtain his consent for surgery

Answer

Proceed immediately to the operating room for an exploratory laparotomy
The correct action is immediate exploratory laparotomy. The patient has sustained blunt abdominal trauma and presents in hypovolemic shock with a positive FAST exam, which mandates urgent surgical hemorrhage control. Furthermore, because this is a life-threatening surgical emergency and the patient is incapacitated, the doctrine of implied consent applies. Care must not be delayed to contact the legal proxy (the sister) or to negotiate with the father.

Step-by-Step Solution

1
Evaluate the patient's hemodynamic status and physical examination findings.
The patient is in Class III/IV hypovolemic shock (BP 76/40 mm Hg, HR 138/min) with signs of an acute surgical abdomen.
Hemodynamic instability fundamentally dictates the trauma algorithm pathway, ruling out time-consuming diagnostic imaging.
2
Interpret the adjunct imaging (FAST examination).
The FAST exam is unequivocally positive for intraperitoneal fluid.
A positive FAST in a hemodynamically unstable patient definitively localizes the source of life-threatening hemorrhage to the abdomen.
3
Determine the legal and ethical requirements for consent in this specific scenario.
The situation qualifies for emergency implied consent.
In life-threatening emergencies where the patient lacks capacity and the designated proxy is not immediately available to provide consent, physicians must provide life-saving treatment immediately without waiting for surrogate authorization.

Key Concept

Hemodynamically unstable patients with a positive FAST exam after blunt abdominal trauma require immediate exploratory laparotomy. Under the doctrine of implied consent, life-saving emergency interventions must not be delayed to obtain surrogate consent.
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Topics

Trauma and Burns

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