Standard 12-Lead Placement (Precordial)Limb lead placement
3-100-1116 Rev. F
V1 (Red/Brown) – Fourth intercostal place at the right margin of the sternum.
V2 (Yellow/Brown) – Fourth intercostal place at the left margin of the sternum.
V3 (Green/Brown) – Midway between V2 and V4 (on top of the 5th rib).
V4 (Blue/Brown) – Fifth intercostal place at the left midclavicular line.
V5 (Orange/Brown) – At the horizontal level of V4, at the anterior axillary.
V6 (Purple/Brown) – At the horizontal level of V4, at the midaxillary line.
(White/White) – Right lateral side
of the upper arm below the shoulder.
(Black/White) – Left lateral side of
the upper arm below the shoulder.
(Green/White) – Inside calf,
midway between knee and ankle.
(Red/White) – Inside calf,
midway between knee and ankle.
1
1
RA LA
LL
RL
3
3
5
5
2
2
4
4
6
6
RL
LL
LA
RA
*For Modified 12-Lead Placement (Precordial) refer to the IQecg
®
Operation Manual Version 8.6.
Midmark Corporation 690 Knox Street, Suite 100, Torrance, CA 90502 Technical Service 800.624.8950 #2 midmark.com
Midaxillary
Line
Midclavicular
Line