Pulmonary Embolism USMLE Step 1 Practice Question
A 69 year old man with metastatic colon cancer suddenly collapses. Blood pressure is 76 over 44 mm Hg, pulse is 132 per minute, and jugular venous pressure is elevated. Lungs are clear to auscultation. Bedside echocardiography shows acute right ventricular dilation. Which of the following is the most likely diagnosis?
Answer choices
- AStreptococcus pneumoniae
- BAcute respiratory distress syndrome
- CPulmonary edema due to left sided heart failure
- DMassive pulmonary embolismCorrect answer
- ETension pneumothorax
- FCardiac tamponade with pericardial effusion and RV collapse
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