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Difficulty: MediumInitial Stabilization and Triage

Accompanied by her spouse, a 26-year-old woman arrives at the emergency department complaining of agonizing right-sided lower abdominal pain and severe lightheadedness that commenced roughly two hours prior. Upon initial assessment, she is lethargic and visibly diaphoretic with marked conjunctival pallor. Her last menstrual cycle occurred 7 weeks ago, and she noted a small amount of vaginal bleeding this morning. Vital signs are notable for a temperature of 37.1°C (98.8°F), a blood pressure of 72/40 mm Hg, a heart rate of 138/min, a respiratory rate of 24/min, and an oxygen saturation of 98% breathing ambient air. Abdominal examination demonstrates a rigid, distended contour with generalized tenderness to palpation and involuntary guarding. Her capillary refill time is prolonged at 4 seconds. Which of the following represents the most appropriate initial step in the management of this patient?

  1. A
    Computed tomography of the abdomen and pelvis
  2. B
    Emergency obstetrics and gynecology consultation
  3. Insertion of two large-bore intravenous catheters and administration of isotonic crystalloid fluidsAnswer
  4. D
    Transvaginal ultrasonography of the pelvis
  5. E
    Intravenous administration of ceftriaxone and doxycycline

Answer

Insertion of two large-bore intravenous catheters and administration of isotonic crystalloid fluids
The correct answer is the insertion of two large-bore intravenous catheters and administration of isotonic crystalloid fluids. This patient presents with classic signs of a ruptured ectopic pregnancy, including a missed menstrual period, sudden-onset abdominal pain, and profound hemorrhagic shock (hypotension, marked tachycardia, lethargy, delayed capillary refill). In any unstable patient, the absolute first priority is stabilization of the airway, breathing, and circulation (ABCs). In the setting of hemorrhagic shock, securing circulation with large-bore peripheral intravenous access is the single most urgent initial step, allowing for rapid infusion of isotonic crystalloids and blood products to restore perfusion before further diagnostic testing or surgery can be safely performed.

Step-by-Step Solution

1
Assess the patient's hemodynamic status based on presenting signs.
The patient is in profound hypovolemic shock, evidenced by severe hypotension (72/40 mm Hg), marked tachycardia (138/min), lethargy, and delayed capillary refill.
Identifying hemodynamic instability is the first step in prioritizing emergency care and triage.
2
Prioritize airway, breathing, and circulation (ABCs) protocols.
An immediate need for circulatory support is identified over all other interventions.
In highly unstable patients, definitive diagnosis and targeted therapies must be delayed until initial physiological resuscitation is underway.
3
Establish vascular access and initiate volume replacement.
Placement of two large-bore peripheral IVs and rapid infusion of isotonic crystalloids.
This is the most critical initial intervention to restore perfusion, prevent complete cardiovascular collapse, and prepare the patient for potential emergency surgery.

Key Concept

In any hemodynamically unstable patient, particularly those in hemorrhagic shock from suspected ruptured ectopic pregnancy, immediate circulatory stabilization with large-bore intravenous access and fluid resuscitation takes precedence over definitive diagnostic imaging or specialist consultation.
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Topics

Initial Stabilization and Triage

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