10-4
5-Leadwire Electrode Placement
Following is the configuration per American standard when using five leadwires:
Figure 10-2 5-Leadwire Electrode Placement
RA (right arm) electrode: near the right shoulder, directly below the clavicle.
LA (left arm) electrode: near the left shoulder, directly below the clavicle.
RL (right leg) electrode: on the right hypogastrium.
LL (left leg) electrode: on the left hypogastrium.
V (precordial) electrode: on the chest.
Attach the chest (V) electrode to one of the following positions indicated in Figure 10-3:
V1: On the 4th intercostal space at the right sterna margin.
V2: On the 4th intercostal space at the left sterna margin.
V3: Midway between V2 and V4 electrodes.
V4: On the 5th intercostal space at the left clavicular line.
V5: On the left anterior axillary line, horizontal with V4 electrode.
V6: On the left middle axillary line, horizontal with V4 electrode.
V3R-V7R: On the right side of the chest in positions corresponding to those on the left.
VE: Over the xiphoid.
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