MCQ – 88885


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


Intercostal muscles, internal thoracic artery, right heart


Serratus anterior muscle, pleura, inferior vena cava


External oblique muscle, superior epigastric artery, azygos vein

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