P1 Patient Monitor User’s Manual
8-5
Lead
IEC AHA
Label Color Label Color
Left arm L Yellow LA Black
Right leg (neutral) N/RF Black RL Green
Left leg F Green LL Red
Chest 1 Ca White Va Brown
Chest 2 Cb White Vb Brown
The following table lists the 12-lead labels and colors for AHA and IEC standards:
Lead
IEC AHA
Label Color Label Color
Right arm R Red RA White
Left arm L Yellow LA Black
Right leg (neutral) N/RF Black RL Green
Left leg F Green LL Red
Chest1 C1 White/Red V1 Brown/Red
Chest 2 C2 White/Yellow V2 Brown/Yellow
Chest 3 C3 White/Green V3 Brown/Green
Chest 4 C4 White/Brown V4 Brown/Blue
Chest 5 C5 White/Black V5 Brown/Orange
Chest 6 C6 White/Purple V6 Brown/Purple
8.4.4. ECG Electrode Placements
In this section, we adopt the AHA standard to illustrate electrode placement.
8.4.4.1. 3-lead Electrode Placement
Taking the AHA standard as an example, the 3-lead electrode placement position is
as shown:
RA placement: directly below the clavicle and near the right shoulder.
LA placement: directly below the clavicle and near the left shoulder.
LL placement: on the left lower abdomen.
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