Monitoring
Using Leads to Monitor
Table 3-3
Lead Formation
Lead
I
II
III
5-Wire Patient Cable
Table 3-4, "5-Wire Electrode Placement," on page 3-3 describes a typical lead-wire
placement using the 5-wire patient cable. Table 3-5, "Lead Configurations," on page
3-3 shows how the individual leads are formed using the individual leadwires.
Table 3-4
5-Wire Electrode Placement
Electrode
RA/White
LA/Black
LL/Red
RL/Green
V/Brown
Table 3-5
Lead Configurations
Lead
I
II
III
aVR
aVF
+
—
LA
RA
LL
RA
LL
LA
Placement
Near right midclavicular line, directly below clavicle.
Near left midclavicular line, directly below clavicle.
Below the left pectoral muscle on the left midclavicular line.
Below the right pectoral muscle on the right midclavicular line.
As appropriate for the V lead to be monitored (V1 - V6).
Leadwire Combinations
LA - RA
LL - RA
LL - LA
RA - .5 (LA + LL)
LL - .5 (RA + LA)
ref
LL
LA
RA
3-3