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USMLE · Question #454
USMLE Question #454: Real Exam Question with Answer & Explanation
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Question
A patient arrives in the emergency department after having been stabbed. He has sustained a penetrating wound in the left fourth intercostal space immediately lateral to the sternal border. Which of the following thoracic structures is most likely to have been injured?
Options
- ALeft atrium
- BLeft ventricle
- CRight atrium
- DRight ventricle
- EUpper lobe of the left lung
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