The ECG electrode positions should be found in the following locations: V1 (C1) Fourth intercostal space at the right sternal border V2 (C2) Fourth intercostal space at the left sternal border V3 (C3) Halfway between leads V2 and V4 V4 (C4) Fifth intercostal space in the midclavicular line V5 (C5) Left anterior axillary line on the same horizontal plane as V4 V6 (C6) Left midaxillary line on the same horizontal plane as V4 and V5 RA (R) Right arm (inner wrist) LA (L) Left arm (inner wrist) RL (N) Right leg (inner ankle) LL (F) Left leg (inner ankle) Unbracketed letters indicate lead names under the American Heart Association (AHA) system; bracketed letters indicate lead numbers under the International Electrotechnical Commission (IEC) 12 Lead ECG Placement and how to use ECG device (Click here)
The ECG electrode positions should be found in the following locations:
| V1 (C1) | Fourth intercostal space at the right sternal border |
|---|---|
| V2 (C2) | Fourth intercostal space at the left sternal border |
| V3 (C3) | Halfway between leads V2 and V4 |
| V4 (C4) | Fifth intercostal space in the midclavicular line |
| V5 (C5) | Left anterior axillary line on the same horizontal plane as V4 |
| V6 (C6) | Left midaxillary line on the same horizontal plane as V4 and V5 |
| RA (R) | Right arm (inner wrist) |
| LA (L) | Left arm (inner wrist) |
| RL (N) | Right leg (inner ankle) |
| LL (F) | Left leg (inner ankle) |
|
Unbracketed letters indicate lead names under the American Heart Association (AHA) system; bracketed letters indicate lead numbers under the International Electrotechnical Commission (IEC) |
12 Lead ECG Placement and how to use ECG device (Click here)