1/5
v1 v2 v3 v4 v5 v6
v1 placement
right side of the sternum at the fourth intercostal space


v2
left side of the sternum, directly across from V1 at the fourth intercostal space

v4
left side of the chest, fifth intercostal space, midclavicular line

v3
left side of the chest, midway between V2 and V4*

v5
left side of the chest, fifth intercostal space, anterior axillary line

v6
left side of the chest, fifth intercostal space, midaxillary line