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Placing the ECG chest leads

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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With thanks to BIOPAC Systems, Inc. ( for allowing this diagram to be used in GPnotebook

V1 - 4th intercostal space, right of sternum

V2 - 4th intercostal space, left of sternum

V3 - midway between V2 and V4

V4 - 5th intercostal space, in the midclavicular line

V5 - same level as V4, at anterior axillary line (between V4 and V6)

V6 - in 5th intercostal space, in the midaxillary line

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