A 32-year-old G2P1 woman at 38 weeks gestation presents to the emergency department with shortness of breath, severe fatigue, and chest tightness. She reports sudden-onset symptoms following a prolonged labor induction for which she received tocolytics. Her past medical history includes preeclampsia during her first pregnancy. She also reports recent vaginal bleeding after a suspected placental abruption. On examination, the patient appears distressed, with a respiratory rate of 30 breaths/min, oxygen saturation of 85% on room air, and crackles heard bilaterally on auscultation. Chest X-ray reveals bilateral infiltrates consistent with pulmonary edema. Laboratory results are significant for proteinuria, thrombocytopenia, and elevated liver enzymes. Which of the following is a cause of acute respiratory distress syndrome (ARDS) unique to pregnancy?
