IJV SCM Triangle — FRCA Primary MCQ
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Correct answer: D — The two heads of SCM and the clavicle
The IJV is at the apex of the triangle formed by the sternal and clavicular heads of SCM with the clavicle as the base. It lies anterolateral to the internal/common carotid artery. Ultrasound guidance is now standard practice for cannulation.
Reference: RCoA 2021 Primary FRCA Curriculum