Manual

4-16 LIFEPAK 15 Monitor/Defibrillator Operating Instructions
Acquiring a 12-Lead ECG
Limb Lead Electrode Sites
When acquiring a 12-lead ECG, limb lead electrodes are typically placed on the wrists and
ankles as shown in Figure 4-4. The limb lead electrodes can be placed anywhere along the
limbs. Do not place the limb lead electrodes on the torso when acquiring a 12-lead ECG.
Figure 4-4 Limb Lead Electrode Placement for 12-Lead ECG
Precordial Lead Electrode Sites
The six precordial (chest) leads are placed on specific locations as shown and summarized in
Figure 4-5. Proper placement is important for accurate diagnosis and should be identified as
follows: leads are V1 through V6 for AHA, or C1 through C6 for IEC. See "ECG Leads Color
Codes" on page 4-10 for color codes.
Figure 4-5 Precordial Lead Electrode Placement
Locating the V1/C1 position (fourth intercostal space) is critically important, because it is the
reference point for locating the placement of the remaining V/C leads.
RA/R
LA/L
LL/FRL/N
AHA Labels IEC Labels
RA Right Arm R Right
LA Left Arm L Left
RL Right Leg N Negative
LL Left Leg F Foot
LEAD LOCATION
V1 C1 Fourth intercostal space to the right of the sternum
V2 C2 Fourth intercostal space to the left of the sternum
V3 C3 Directly between leads V2/C2 and V4/C4
V4 C4 Fifth intercostal space at midclavicular line
V5 C5 Level with V4/C4 at left anterior axillary line
V6 C6 Level with V5/C5 at left midaxillary line
Angle of
Louis