Question
An 18-year-old man is brought to the emergency department 30 minutes after being stabbed in the chest during a fight. He has no other injuries. His pulse is 120/min, blood pressure is 90/60 mm Hg, and respirations are 22/min. Examination shows a 4-cm deep, straight stab wound in the 4th intercostal space 2 cm medial to the right midclavicular line. The knife most likely passed through which of the following structures?
| A. | Pectoral fascia, transversus thoracis muscle, right lung |
| B. |
Intercostal muscles, internal thoracic artery, right heart |
| C. |
Serratus anterior muscle, pleura, inferior vena cava |
| D. |
External oblique muscle, superior epigastric artery, azygos vein |
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