5-lead
The electrode placement position of 5-lead is shown in Fig. 9-2:
R/RA electrode: placed below the clavicle, near the right shoulder.
L/LA electrode: placed below the clavicle, near the left shoulder.
N/RL electrode: placed on the right abdomen.
F/LL electrode: placed on the left abdomen.
C/V electrode: placed on the chest wall.
European Standard American Standard
Figure 7-2: 5-Lead placement method
If the electrodes are attached correctly, but the ECG wave is not accurate, then
replace the lead.
Interference from ungrounded instrument near the patient and ESU may cause