The chest leads are identified as V1, V2, V3, V4, V5, and V6. Each electrode placed in a "V" position is positive.
Elements of Chest Leads
| Lead | Positive Electrode Placement | View of Heart |
|---|---|---|
| V1 | 4th Intercostal space to right of sternum | Septum |
| V2 | 4th Intercostal space to left of sternum | Septum |
| V3 | Directly between V2 and V4 | Anterior |
| V4 | 5th Intercostal space at left midclavicular line | Anterior |
| V5 | Level with V4 at left anterior axillary line | Lateral |
| V6 | Level with V5 at left midaxillary line | Lateral |