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A) After identification and in-plane alignment of subclavian vein (SCV) on ultrasound, the insertion needle enters the skin at midpoint of the transducer’s small footprint and is advanced within the plane of ultrasound penetration. B), C) and D) The transducer remains in steady position enabling continuous longitudinal view of SCV, and the needle is carefully and slowly introduced with maintenance of needle visualization until the anterior wall of SCV is punctured.
