Asthma USMLE Step 1 Practice Question
A 24-year-old man undergoes repair of a femoral shaft fracture after a motor vehicle collision. Two days postoperatively, he develops acute dyspnea, confusion, and a petechial rash over the upper chest and shoulders. Vital signs show BP 110/68 mmHg, HR 118 bpm, RR 28/min, temperature 38.2°C, and SpO2 88% on room air. Chest X-ray reveals bilateral diffuse alveolar infiltrates. Platelet count is 95,000/μL. He denies recent leg swelling. Which of the following is the most likely diagnosis?
Answer choices
- AAspirational pneumonitis
- BFat embolism syndromeCorrect answer
- CTension pneumothorax
- DAmniotic fluid embolism
- ESeptic pulmonary emboli
- FAcute respiratory distress syndrome secondary to trauma
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