3-6 CASE Revision C
2060290-201
Applying Electrodes
Standard 12 Lead Electrode Placement
AHA Label IEC Label Electrode Placement
A V1 red C1 red Fourth intercostal space at the right sternal border.
B V2 yellow C2 yellow Fourth intercostal space at the left sternal border.
C V3 green C3 green Midway between sites B and D.
D V4 blue C4 brown Mid-clavicular line in the fifth intercostal space.
E V5 orange C5 black Anterior axillary line on the same horizontal level
as D.
F V6 purple C6 purple Mid-axillary line on the same horizontal level as D.
G LA black L yellow Left arm (resting ECG).
J RA white R red Right arm (resting ECG).
H LL red F green Left foot (resting ECG).
I RL green N black Right foot (resting ECG).
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