Philips MP40/50, MP60/70/80/90, MP20/30 manual Chest Electrode Placement

ECG Lead Placements 6 ECG, Arrhythmia, and ST Monitoring

Chest Electrode Placement

For accurate chest electrode placement and measurement, it is important to locate the fourth intercostal space.

1Locate the second intercostal space by first palpating the Angle of Lewis (the little bony protuberance where the body of the sternum joins the manubrium). This rise in the sternum is where the second rib is attached, and the space just below this is the second intercostal space.

2Palpate and count down the chest until you locate the fourth intercostal space.

Angle of

Lewis

2
3				V7
4	V1		V2
V4RV3R
		VE	V3	V6
			V4	V5

V1 placement: on the fourth intercostal space at the right sternal border

V2 placement: on the fourth intercostal space at the left sternal border

V3 placement: midway between the

V2 and V4 electrode positions

V4 placement: on the fifth intercostal space at the left midclavicular line

V5 placement: on the left anterior axillary line, horizontal with the V4 electrode position

V6 placement: on the left midaxillary line, horizontal with the V4 electrode position

V3R to V6R placement: on the right side of the chest in positions corresponding to those on the left

VE placement: over the xiphoid process

V7 placement: on posterior chest at the left posterior axillary line in the fifth intercostal space

V7R placement: on posterior chest at the right posterior axillary line in the fifth intercostal space

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