Subclavian pneumothorax — FRCA Primary MCQ
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Correct answer: C — Pleural dome near subclavian vein
The pleural dome lies close to the subclavian vein. Obturator nerve is less appropriate because it would fit a different clinical clue or a separate anaesthetic problem. Ligamentum flavum is less appropriate because it would fit a different clinical clue or a separate anaesthetic problem. Cervicothoracic sympathetic ganglion is less appropriate because it would fit a different clinical clue or a separate anaesthetic problem. Internal superior laryngeal nerve is less appropriate because it would fit a different clinical clue or a separate anaesthetic problem. In Primary FRCA anatomy, the tested structure should explain the block, airway sign or regional complication in the stem.
Reference: Ellis, Feldman & Harrop Anatomy for Anaesthetists; Primary FRCA textbooks