8-2
8.3.2 Choosing AHA or IEC Lead Placement
1. Select the ECG parameter window or waveform area to enter the [ECG Setup] menu.
2. Select [Others]→[Lead Set] and then select [3-lead], [5-lead], or [Auto] according to the applied electrodes.
3. Select [Main Menu]→[Maintenance >>]→[User Maintenance >>]→enter the required password.
4. Select [Others >>]→[ECG Standard] and then select [AHA] or [IEC] according to the standard that is applied for
your hospital.
8.3.3 ECG Lead Placements
The electrode placement illustrations in this chapter adopt the AHA standard.
3-Leadwire Electrode Placement
Following is the configuration per the European standard when using three leadwires:
RA(right arm) lead: on the right foreleg.
LA(left arm) lead: on the left foreleg.
LL(left leg) lead: on the left hind leg.
The chart below shows the label used to identify each leadwire. Included also is its associated color code per American
(AHA) and European (IEC) standards.
American Standard European Standard
Label Color Label Color
RA White R Red
LA Black L Yellow
LL Red F Green
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