Step 2

Pulmonary 12

A 57-year-old woman is admitted to the hospital for an elective gastrectomy for a gastric adenocarcinoma. During insertion of a subclavian venous catheter using a right infraclavicular approach, the patient experiences sudden shortness of breath and is obviously uncomfortable in the operating room. Her pulse is 108/min, respirations are 26/min, and blood pressure is 104/64 mm Hg. Physical examination shows jugular venous distention. Breath sounds are decreased on the right.

Which of the following is the most likely diagnosis?

  • A) Air embolism
  • B) Cardiac tamponade
  • C) Claustrophobia
  • D) Massive hemothorax
  • E) Tension pneumothorax


Lloyd Taylor


Dr. Ted O'Connell

Last updated

Jun 09, 2024


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