Electrode Placement For Standard Leads (L, Ii, Iii, Avr, Avl, Avf, V1 - GE MAC 1200 Operator's Manual

Electrode Placement for Standard Leads (l, II, III, aVR, aVL, aVF,
V1...V6)
Revision C
Preparing for ECG Recording: Electrode Application
For acquisition of the standard ECG leads, four electrodes must be
applied on the limbs and six on the chest. The limb electrodes should be
placed above the wrists and ankles. The figure below shows the chest
electrode application points.
C1 4th intercostal space at the right border of the sternum
C2 4th intercostal space at the left border of the sternum
C3 On the 5th rib, midway between locations C2 and C4
C4 At the mid-clavicular line in the 5th intercostal space
C5 At the anterior auxiliary line on the same horizontal level as C4 and C6
C6 At the mid-auxiliary line on the same horizontal level as C4
C7* At the left posterior auxilary line in the 5th intercostal space
C8* At the left scapulary line in the 5th intercostal space
C3R* Opposite C3, on the right side of the chest
C4R* Opposite C4, on the right side of the chest
* additional standard leads
MAC 1200/1200 ST
2012250-021
C1 C2
C3R C3
C4
C4R
C8
C4R
C2 C3 C4
C3R C1
Chest Electrode Placement
Description
C5
C6
C7
C6
C5
008A
4-5