V1 location
4th intercostal space, right sternal
V1 view
Ventricular septum
V2 location
4th intercostal space, left eternal border
V2 view
Ventricular septum
V3 location
Between V2 and V4
V3 view
Anterior wall of left ventricle
V4 location
5th intercostal space, midclavicular line
V4 view
Anterior wall of left ventricle
V5 location
Lateral to V4 at the anterior ancillary line
V5 view
Lateral wall of left ventricle
V6 location
Lateral to V5 at the maxillary line
V6 view
Lateral wall of left ventricle
Lead I view
Lateral
Lead II view
Inferior
Lead III view
Inferior
aVR view
None
aVL view
Lateral
AVF view
Inferior
PRI length
<0.20
QRS
>0.04, <0.12