Midmark IQecg - Limb Lead Placement; Standard 12-Lead Precordial Placement; Modified 12-Lead Placement

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Limb Lead Placement
RA (White) – The Right Arm (RA) electrode is placed on a distal portion of the right lateral side of the upper arm below the shoulder.
LA (Black) – The Left Arm (LA) electrode is placed on a distal portion of the left lateral side of the upper arm below the shoulder.
RL (Green) – The Right Leg (RL) electrode is placed on the inside calf, midway between knee and ankle.
LL (Red) – The Left Leg (LL) electrode is placed on the inside calf, midway between knee and ankle.
Standard 12-Lead Placement (Precordial) V1 (Red) – 4
th
intercostal,
right margin of the sternum. V2 (Yellow) – 4
th
intercostal, left margin of the
sternum.
V3 (Green) – Midway between V2 and V4
(on top of the 5th rib).
V4 (Blue) – 5
th
intercostal, left midclavicular line.
V5 (Orange) – Horizontal level of V4, at the anterior axillary line.
V6 (Purple) – Horizontal level of V4, at the midaxillary line.
Modified 12-Lead Placement (Precordial &
Posterior)
V3R (Green) – Corresponds to V3 on the right side. V1 (Red) – 4
th
intercostal,
right margin of the sternum. V2 (Yellow) – 4
th
intercostal, left margin of the
sternum.
V5 (Orange) – Horizontal level of V4, at the anterior axillary line.
V6 (Purple) – Horizontal level of V4, at the midaxillary line.
Standard 12-Lead ECG Hookup
Caution
Follow the standard 12-Lead ECG Placement when performing a STAT ECG. The automated
ECG analysis algorithm assumes standard 12-lead ECG placement. Any deviation from the
standard 12-lead ECG placements may affect the accuracy of the automated interpretation.