V1
4th intercostal space - right sternal edge
Septal view of heart
V2
4th intercostal space - left sternal edge
Septal view of heart
V3
Midway between V2 & V4
Anterior view of heart
V4
5th intercostal space - midclavicular line
Anterior view of heart
V5
Left anterior axillary line - same horizontal view as V4
Lateral view of heart
V6
Left mid-axillary line - same horizontal level as V4 & V5
Lateral view of heart
LA
Left arm
Avoid bony prominences, large muscle groups
RA
Right arm
Avoid bony prominences, large muscle groups
LL
Left leg
RL
Right leg