7. PRECORDIAL LEADS
V1-Right edge of the sternum,4th
Intercostal space
V2-left edge of the sternum,4th
Intercostal space
V3-placed between V2 & V4
V4-Midclavicular line,5th
intercostal space
V5-Anterior Axillary line,horizontal in line with V4
V6-Midaxillary line , horizontal with V4