Examkin

Question

Difficulty: Very hardObstetric Complications

A 3333-year-old woman, G3P2, at 3636 weeks gestation is brought to the emergency department after a high-speed motor vehicle collision. She complains of severe, constant abdominal pain. She is fully conscious but extremely anxious and reiterates her religious objection to receiving any blood products, providing a signed advance directive that explicitly refuses transfusions under all circumstances. Her blood pressure is 82/5082/50 mm Hg, heart rate is 128128/min, and respiratory rate is 2222/min. Abdominal examination reveals a rigid, exquisitely tender uterus, and fetal parts are easily palpable just beneath the maternal abdominal wall. A focused assessment with sonography for trauma (FAST) exam shows a large amount of free fluid in the hepatorenal recess. Arterial blood gas on room air shows a pH of 7.447.44, pCO 2_2 of 2929 mm Hg, pO 2_2 of 9898 mm Hg, and HCO 3−_3^- of 2020 mEq/L. Hemoglobin is 10.410.4 g/dL. Fetal heart tracing shows a baseline of 170170/min, absent variability, and recurrent late decelerations. Which of the following is the most appropriate next step in management?

  1. Proceed immediately to exploratory laparotomy and cesarean delivery using non-blood volume expandersAnswer
  2. B
    Transport the patient to the computed tomography suite to identify the source of intra-abdominal hemorrhage
  3. C
    Proceed with exploratory laparotomy and administer uncrossmatched O-negative blood to save the fetus
  4. D
    Administer a bolus of intravenous crystalloid and reposition the patient to the left lateral decubitus position
  5. E
    Intubate and mechanically ventilate the patient to correct her respiratory alkalosis before proceeding to surgery

Answer

Proceed immediately to exploratory laparotomy and cesarean delivery using non-blood volume expanders
The patient has experienced a traumatic uterine rupture, indicated by maternal hemorrhagic shock, easily palpable fetal parts outside the uterine contour, and a Category III fetal heart tracing. Immediate exploratory laparotomy and cesarean delivery are necessary to control the hemorrhage and deliver the fetus. Because she is a competent adult with a clear, signed advance directive refusing blood products, her autonomy must be respected. The surgical team must proceed with alternative resuscitation methods, such as crystalloid volume expanders or a cell saver (if acceptable to her beliefs), but cannot force a blood transfusion.

Step-by-Step Solution

1
Evaluate maternal hemodynamic stability and fetal status following major trauma.
The patient is in hemorrhagic shock (BP 82/5082/50 mm Hg, positive FAST) with severe fetal compromise (Category III tracing).
Immediate recognition of life-threatening hemorrhage is necessary to triage the patient to the operating room.
2
Diagnose the specific obstetric complication causing the presentation.
Uterine rupture is diagnosed based on the mechanism of injury, rigid abdomen, and easily palpable fetal parts outside the normal uterine contour.
Traumatic uterine rupture results in massive intra-abdominal hemorrhage and rapid fetal asphyxia, mandating emergent surgical intervention.
3
Determine the appropriate intervention while respecting ethical and legal constraints.
Emergency laparotomy utilizing non-blood volume expanders is selected.
A competent pregnant patient has the autonomy to refuse blood products. This refusal must be honored even in a life-threatening emergency that threatens maternal or fetal survival.

Key Concept

Management of traumatic uterine rupture in a hemodynamically unstable patient with an explicit refusal of blood products.
Rate this question

Topics

Obstetric Complications

More questions from this topic