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Difficulty: MediumInitial Stabilization and Triage

A 26-year-old woman arrives at the emergency department via private vehicle complaining of sudden, severe right lower abdominal pain that began one hour ago. She reports severe dizziness and states she nearly lost consciousness while walking from the parking lot. She is 7 weeks pregnant according to her last menstrual period and has a past medical history significant for pelvic inflammatory disease. On physical examination, she is lethargic, pale, and diaphoretic. Vital signs include a temperature of 37.2 C (99.0 F), blood pressure of 74/42 mm Hg, heart rate of 140/min, respiratory rate of 24/min, and oxygen saturation of 97% on room air. Her abdomen is rigidly distended with diffuse tenderness and rebound, most prominent in the right lower quadrant. Which of the following is the most appropriate immediate next step in the stabilization and management of this patient?

  1. Establish peripheral intravenous access and initiate rapid fluid resuscitationAnswer
  2. B
    Perform a bedside transvaginal ultrasound to evaluate the pelvis
  3. C
    Obtain a computed tomography scan of the abdomen and pelvis without contrast
  4. D
    Administer broad-spectrum intravenous antibiotics for suspected pelvic infection
  5. E
    Transfer the patient to the intensive care unit for close observation

Answer

The correct answer is to establish peripheral intravenous access and initiate rapid fluid resuscitation.
The correct answer is to establish peripheral intravenous access and initiate rapid fluid resuscitation. This patient is presenting with hemorrhagic shock, which is highly suspicious for a ruptured ectopic pregnancy given her 7-week pregnancy status, sudden severe abdominal pain, and profound hemodynamic instability (hypotension, tachycardia, pallor, lethargy). In any acutely unstable patient, the immediate priority is always the assessment and stabilization of the airway, breathing, and circulation (ABCs). For hypovolemic shock, restoring intravascular volume with large-bore intravenous lines and rapid crystalloid or blood product infusion is the most critical first step before any diagnostic testing, imaging, or definitive surgical intervention. Only after or concurrent with hemodynamic stabilization should diagnostic measures proceed.

Step-by-Step Solution

1
Assess the patient's clinical presentation and vital signs.
The patient is lethargic, pale, diaphoretic, hypotensive (74/42 mm Hg), and tachycardic (140/min).
Identifying profound hemodynamic instability is the first critical step in emergency triage.
2
Determine the likely underlying pathophysiology.
Given the positive pregnancy status, sudden severe abdominal pain, and shock, she likely has a ruptured ectopic pregnancy causing massive internal hemorrhage.
Understanding the mechanism of shock (hypovolemic/hemorrhagic) guides the immediate stabilization priorities.
3
Prioritize management steps according to the ABCs (Airway, Breathing, Circulation) of resuscitation.
The immediate priority is restoring intravascular volume.
In any critically ill patient, life-saving physiological stabilization must always precede diagnostic testing or definitive consultation.

Key Concept

In an unstable patient with suspected hemorrhagic shock, the immediate priority is establishing large-bore intravenous access and initiating volume resuscitation (Circulation) before performing diagnostic tests.
Estimated Time:1m 0s
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Topics

Initial Stabilization and Triage

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