Connection Of The Limb Electrodes; Connection Of The Chest Electrodes - Saadat DENA 1210 User Manual

Chapter 3: Patient preparation
• When you connect the cables and electrodes, make sure that no metal part is in
contact with the safety ground.
• Check that all ECG electrodes are properly attached to the patient's body.
• Interference from non-grounded devices near the patient or ESU (Electrosurgical
Unit) can cause inaccurate ECG waveforms.
• Use only the manufacturer recommended ECG cable with internal resistance. Other
ECG cables and leads may cause burns, improper performance and/or provide
inadequate protection during defibrillation.
• When the device is used with electrocautery unit, please note the position of leads.
In order to reduce the hazard of burns, the leads should be located away from the
electrocautery pen and return electrode.

Connection of the Limb electrodes

4 electrodes of 10 ECG electrodes are attached to the limbs. The location of the limb electrodes
for the 12-lead ECG is as follows (Figure 3-2):
• Left hand (L)(LA)
• Right hand (R)(RA)
• Left foot (F)(LL)
• Right foot (N)(RL)

Connection of the Chest Electrodes

Press the suction bulb and place the chest electrode on proper site (Figure 3-3) and then release.
The location of the chest electrodes is as follows:
• C1 (V1): Fourth intercostal space at the right margin of the sternum.
• C2 (V2): Fourth intercostal space at the left margin of the sternum.
• C3 (V3): Midway between V2 and V4.
• C4 (V4): Fifth intercostal space at the left midclavicular line.
• C5 (V5): Left anterior axillary line at the horizontal level of V4.
• C6 (V6): Left mid-axillary line at the horizontal level of V4.
Figure 3-2 Connection of the Limb electrodes
Figure 3-3 Connection of the Chest electrodes
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