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Difficulty: Very hardInitial Stabilization and Triage

A 34-year-old gravida 2, para 2 woman is evaluated in the labor and delivery unit due to sudden-onset severe dyspnea and altered mental status. She had an uncomplicated spontaneous vaginal delivery of a healthy neonate 30 minutes ago. On presentation, she is gasping for air and is lethargic. Blood pressure is 60/40 mm Hg, heart rate is 145/min, and respiratory rate is 34/min. Oxygen saturation is 76% on room air. Physical examination reveals generalized petechiae, profuse continuous bleeding from her peripheral intravenous catheter sites, and a soft, boggy uterus. Auscultation of the lungs reveals diffuse bilateral crackles. Which of the following are the most appropriate immediate steps in management? (Select 2)

  1. Endotracheal intubation and mechanical ventilationAnswer
  2. Activation of the massive transfusion protocolAnswer
  3. C
    Administration of intravenous alteplase
  4. D
    Transfer for computed tomography pulmonary angiography
  5. E
    Transfer to interventional radiology for uterine artery embolization

Answer

The most appropriate initial steps are endotracheal intubation with mechanical ventilation, and activation of the massive transfusion protocol.
The correct answers address the two most immediate life-threatening derangements in this patient. Endotracheal intubation is required because the patient is lethargic, severely hypoxemic, and unable to protect her airway. Activation of the massive transfusion protocol is required because the patient is in profound hemorrhagic shock complicated by disseminated intravascular coagulation, evidenced by diffuse bleeding from catheter sites.

Step-by-Step Solution

1
Analyze the clinical presentation.
The patient exhibits the classic triad of amniotic fluid embolism (AFE): sudden cardiovascular collapse, profound hypoxemia, and disseminated intravascular coagulation (DIC) occurring shortly after delivery.
Accurate syndrome recognition is required to direct immediate resuscitation efforts away from standard algorithms for simple pulmonary embolism or isolated uterine atony.
2
Address the patient's airway and breathing.
The correct intervention is endotracheal intubation and mechanical ventilation.
The patient has altered mental status, severe hypoxemia (76% on room air), and signs of cardiogenic/non-cardiogenic pulmonary edema (crackles). Securing the airway is the first priority in the ABC stabilization algorithm.
3
Address the patient's circulation and coagulopathy.
The correct intervention is the activation of the massive transfusion protocol.
The presence of petechiae and bleeding from intravenous sites indicates DIC, a hallmark of AFE. Severe hemorrhagic shock with coagulopathy must be aggressively managed with balanced blood products (packed red blood cells, fresh frozen plasma, and platelets).

Key Concept

The initial stabilization of amniotic fluid embolism (AFE) requires immediate adherence to the ABC algorithm, prioritizing endotracheal intubation for severe hypoxemia and massive transfusion protocol activation to manage profound hemorrhagic shock and consumptive coagulopathy.
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Topics

Initial Stabilization and Triage

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