
10-6
10-Leadwire Electrode Placement
Figure 10-4 10-Leadwire Electrode Placement
12-lead ECG monitoring uses 10 electrodes which are placed on the patient’s four limbs and
chest. The limb electrodes should be placed on the soft skin and the chest electrodes placed
according to the physician’s preference.
Electrode Placement for Surgical Patients
Electrode placement during surgery is dependent on the type of surgery being performed. For
example, with open chest surgery, the electrodes might be placed laterally on the chest or on the
back. In the operating room, artifact can sometimes affect the ECG waveform due to the use of
electrosurgery equipment. To help reduce this, place the electrodes on the right and left shoulders,
the right and left sides near the stomach, and place the chest lead on the left side at mid-chest.
Avoid placing the electrodes on the upper arms. This will cause the ECG waveform to be too
small.
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