ECG MONITORING
740
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21-22-0335 Rev D
Page 18 of 40
VERIFYING PROPER PACEMAKER HANDLING
For paced patients, proper electrode placement results in pacer tick marks along the top of each
ECG waveform channel. These tick marks occur at the point where the monitor detects a pacer
pulse.
The monitor rejects pacer pulses rather than calling them a QRS complex (per IEC 60601-2-27).
However, it is important to keep paced patients under close surveillance and not to entirely rely
on rate meters for these patients (as indicated in the warning at the start of this manual).
FREEZING WAVEFORMS
In some clinical environments the user may want to freeze the displayed waveforms.
Touching the right side of the waveform area (under the blue line) will cause all displayed
waveforms to be frozen (refer to Figure 9 - ECG & SpO2 waveforms frozen).
Only the waveforms are frozen. Numeric values will continue to be updated, and alarm
conditions continue to be generated as they occur.
To unfreeze the displayed waveforms perform one of the following:
Touch the right side of the waveform area again.
OR
Touch anywhere on the screen that will open a menu (e.g., most buttons, numerics, left
side of waveform area)
Touching
Alarm Silence
or
Home
button
will not unfreeze
displayed waveforms
Figure 9: Waveform Frozen - Touch Area is under blue line
