Subclavian Vein Position — FRCA Primary MCQ
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Correct answer: A — Anterior and inferior separated by scalenus anterior
The subclavian vein is anterior and inferior to the artery separated by scalenus anterior. It passes over the first rib anterior to scalenus anterior then joins the IJV to form the brachiocephalic vein. Pneumothorax is the main risk of subclavian cannulation.
Reference: RCoA 2021 Primary FRCA Curriculum