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names in America are RA, LA, RL, LL and
V.)
America Euro
Lead names color Lead names color
RA White R Red
LA Black L Yellow
LL Red F Green
RL Green N Black
V brown C White
Figure
Figure
Figure
Figure 11-1
11-1
11-1
11-1 Electrode
Electrode
Electrode
Electrode placement
placement
placement
placement for
for
for
for 5-lead
5-lead
5-lead
5-lead set
set
set
set
N
N
N
N ote
ote
ote
ote
To
To
To
To
ensure
ensure
ensure
ensure patient
patient
patient
patient safety,
safety,
safety,
safety, all
all
all
all leads
leads
leads
leads must
must
must
must be
be
be
be attached
attached
attached
attached to
to
to
to the
the
the
the patient.
patient.
patient.
patient.
For 5-lead set, attach the C-electrode to one of the indicated positions as below (Figure 11- 2 ):
■ 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 position.
■ V7 On the 5th intercostal space at the left posterior axillary line of back.
■ V7R On the 5th intercostal space at the right posterior axillary line of back.
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