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Difficulty: MediumInitial Stabilization and Triage

Paramedics transport a young female to the triage area following a syncopal episode at her workplace. The patient, who is 31 years of age, reports that prior to fainting, she experienced an abrupt onset of excruciating pain in the lower right side of her abdomen. Her medical background is unremarkable. Upon assessment in the resuscitation bay, her skin is remarkably pale and clammy. Evaluation of her vital parameters demonstrates a core temperature of 36.8°C (98.2°F), a markedly diminished blood pressure of 74/42 mm Hg, a pulse of 142/min, and respirations of 22/min. Her oxygen saturation remains 98% while breathing ambient air. She is conversing, though she appears confused and drowsy. Auscultation of the thorax is clear. Palpation of the abdomen elicits diffuse tenderness, significant guarding, and rebound, with the point of maximum intensity in the lower right quadrant. Which of the following is the single most urgent initial step in the management of this patient?

  1. Establish large-bore peripheral access and infuse an isotonic crystalloid solutionAnswer
  2. B
    Perform a bedside transvaginal ultrasound to assess for free fluid
  3. C
    Page obstetrics and gynecology for an immediate surgical intervention
  4. D
    Draw peripheral blood to determine the serum beta-human chorionic gonadotropin level
  5. E
    Administer empirical broad-spectrum antimicrobial therapy

Answer

Establish large-bore peripheral access and infuse an isotonic crystalloid solution
This patient presents with profound hypotension, extreme tachycardia, pallor, and diaphoresis in the setting of acute abdominal pain, indicating decompensated hemorrhagic shock. According to the foundational principles of advanced life support, after ensuring a patent airway and adequate breathing, the most critical immediate intervention is the stabilization of circulation. This is achieved by rapidly establishing large-bore intravenous access and infusing isotonic crystalloids (and preparing for uncrossmatched blood products if necessary) to restore intravascular volume and preserve vital end-organ perfusion.

Step-by-Step Solution

1
Assess the patient's airway, breathing, and circulation (ABCs).
The airway is patent (she is conversing) and breathing is adequate (SpO2 98%, clear lungs), but circulation is severely compromised (blood pressure 74/42 mm Hg, heart rate 142/min).
The ABCs are the universal first step in evaluating any unstable patient in the emergency department.
2
Identify the primary life threat.
The patient is in uncompensated shock. Her sudden-onset abdominal pain, pallor, and diaphoresis strongly suggest acute intra-abdominal hemorrhage (e.g., ruptured ectopic pregnancy).
Recognizing the physiological state of shock dictates the immediate need for aggressive volume resuscitation.
3
Select the most urgent intervention.
Intravenous access and isotonic crystalloid (or blood product) resuscitation are prioritized above all other actions.
Hemodynamic stabilization is an immediate life-saving measure that must precede diagnostic imaging, laboratory testing, and subspecialty consultation.

Key Concept

In the setting of acute undifferentiated shock, immediate stabilization of circulation with intravenous access and volume resuscitation takes absolute precedence over diagnostic imaging, laboratory testing, and subspecialty consultation.
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Topics

Initial Stabilization and Triage

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