ZOLL E Series Monitor Defibrillator Rev G 12 Lead - Manual (Page 5)

Electrode Placement
9650-1213-01 Rev. G 3
Electrode Placement
Depending on local usage, ECG lead wires are marked
with certain labels. Refer to the following table for labels
and color codes for the different lead sets.
1 American Heart Association
2
International Electrotechnical Commission
Proper skin preparation and use of proper electrodes are
very important for good signal quality.
If necessary, prepare the patient's skin for electrode
application by:
• Shaving or clipping excess hair at electrode site.
• Cleaning oily skin with an alcohol pad.
• Rubbing site briskly to dry.
• Avoiding placing electrodes over tendons and major
muscle masses.
Place electrodes on the patient. All electrodes must be
connected.
When acquiring 12-lead ECG from quiet supine patients,
ZOLL Medical Corporation recommends placing the limb
electrodes anywhere along the ankles and wrists. When
it is difficult for the patient to remain motionless due to
shivering, muscle tremors, or transport vehicle
movement, place limb electrodes on patient’s thorax for
better results. (Refer to the following two diagrams for
limb electrode placement).
Location
AHA 1 Labels IEC 2 Labels
Right Arm RA (white) R (red)
Left Arm LA (black) L (yellow)
Right Leg RL (green) N (black)
Left Leg LL (red) F (green)
Chest V1 C1
Chest V2 C2
Chest V3 C3
Chest V4 C4
Chest V5 C5
Chest V6 C6
Place the precordial electrodes across the chest in the
following locations:
Locating the V1 position (fourth intercostal space) is
critically important because it is the reference point for
locating the placement of the remaining V-leads. To
locate the V1 position:
1. Place your finger on top of the jugular notch (see figure
below).
2. Move your finger slowly downward about 1.5 inches
(3.8 centimeters) until you feel a slight horizontal ridge
or elevation. This is the “Angle of Louis,” where the
manubrium joins the body of the sternum.
V1: Fourth intercostal space, at the patient’s right
sternal margin.
V2: Fourth intercostal space, at the patient’s left
sternal margin.
V3: Fifth rib, between leads V2 and V4.
V4: Fifth intercostal space, on the patient’s mid-
clavicular line.
V5: Patient’s left anterior axillary line, at the hori-
zontal level of V4.
V6: Patient’s left midaxillary line, at the same hori-
zontal level as V4 and V5.
RA/R LA/L
RL/N LL/F
IEC and Alternate AHA
Placement
AHA
Placement
Jugular Notch
Angle of Louis