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Difficulty: MediumInitial Stabilization and Triage

Paramedics transport a 29-year-old female to the acute care bay after she collapsed at a grocery store. En route, the patient regained partial consciousness but remained confused and complained of excruciating lower abdominal cramping. She has no known chronic medical conditions. Upon arrival, the patient appears ashen and is actively sweating. Vital signs show a temperature of 36.7°C (98.0°F), blood pressure of 74/42 mm Hg, heart rate of 138/min, and respiratory rate of 26/min. Oxygen saturation is 99% on ambient air. The abdomen is distended, with significant guarding and rigidity noted across all quadrants. A rapid bedside urine human chorionic gonadotropin test is positive. Which of the following are the most appropriate simultaneous initial steps in the stabilization of this patient? (Select 2 options)

  1. Placement of two large-bore peripheral intravenous cathetersAnswer
  2. B
    Transfer to the radiology suite for a comprehensive pelvic ultrasound
  3. C
    Commencement of an intravenous norepinephrine infusion
  4. Initiation of uncrossmatched type O-negative blood transfusionAnswer
  5. E
    Collection of serum for a stat quantitative human chorionic gonadotropin level

Answer

The correct simultaneous initial stabilization steps are the placement of two large-bore peripheral intravenous catheters and the initiation of an uncrossmatched type O-negative blood transfusion.
This patient is presenting with signs of profound hemorrhagic shock (hypotension, marked tachycardia, pallor, diaphoresis) and an acute surgical abdomen in the setting of a positive pregnancy test, which is highly suspicious for a ruptured ectopic pregnancy. In hemorrhagic shock, securing rapid access to the central circulation and restoring oxygen-carrying capacity are critical first steps. Establishing two large-bore (14- or 16-gauge) peripheral intravenous catheters allows for rapid administration of fluids and blood products. Because the patient is severely hemodynamically unstable and cannot wait for a type and crossmatch, immediate transfusion with uncrossmatched type O-negative packed red blood cells is indicated to treat the hypovolemia and improve tissue oxygenation while awaiting definitive surgical intervention.

Step-by-Step Solution

1
Identify the patient's primary physiologic derangement based on the clinical presentation.
The patient is in class III/IV hemorrhagic shock, likely secondary to a ruptured ectopic pregnancy given the positive pregnancy test and acute rigid abdomen.
Recognizing the specific etiology of shock dictates the immediate resuscitation pathway needed.
2
Prioritize immediate life-saving interventions (ABCs) tailored to hemorrhagic shock.
The primary focus must be on restoring intravascular volume and oxygen-carrying capacity simultaneously.
Failure to rapidly reverse profound hypovolemia in acute hemorrhage leads to irreversible tissue ischemia and cardiovascular collapse.
3
Select the appropriate clinical interventions for the identified priority.
Establishing large-bore intravenous access and administering uncrossmatched O-negative blood are chosen as the immediate steps.
These concurrent actions provide the necessary infrastructure and fluids to physically stabilize the patient while awaiting an emergent surgical response.

Key Concept

In patients presenting with severe hemorrhagic shock, immediate stabilization requires securing large-bore intravenous access and initiating volume resuscitation with blood products prior to diagnostic imaging or confirmatory laboratory testing.
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Topics

Initial Stabilization and Triage

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