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Acquiring a 12-Lead ECG
6-13
• To select which three leads to display on the screen, press the or key, or
the Space bar, to display the next lead group, or press the or key to display
the previous lead group.
• Before you connect the electrodes, each lead displays on the screen as a dotted
line, indicating that at least one of the electrodes associated with the lead is not
connected. The dotted line is known as a “leads off” trace. Use the leads off
labels (see Table 6-2) to determine which electrodes are off.
• As you connect the electrodes to the patient, the lead waveforms are displayed on
the screen.
The ECG traces are updated by the erase bar that moves across the screen.
Table 6-3 Lead Groups
Group Leads Displayed
Group 1 I, II, III
Group 2 aVR, aVL, aVF
Group 3 V1, V2, V3
Group 4 V4, V5, V6
Group 5 user configurable
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