11.2.2.1 5-Lead Placement
Following is the configuration per American standard when using five leadwires:
Figure 11-3 5-Lead Placement
•
RA (right arm) lead: on the right foreleg.
•
LA (left arm) lead: on the left foreleg.
•
RL (right leg) lead: on the right hind leg.
•
LL (left leg) lead: on the left hind leg.
•
V (precordial) lead: exploring lead.
NOTE
•
The exploring lead is used for diagnostic purposes as needed. Otherwise, it may
be left unplugged.
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
RL Green N Black
V Brown C White
11-5
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