ZOLL Propaq M Rev B - Manual (Page 73)

ECG Monitoring and Pacemakers
9650-0803-01 Rev. B Propaq M Operator’s Guide 6-9
ECG Monitoring and Pacemakers
When the unit performs ECG monitoring on a patient with an implantable pacemaker, the unit’s
Pacer indicator feature can indicate the occurrence of pacemaker signals.
If the Pacer Indicator setting is ON , the Propaq M performs the following actions:
• detects the implantable pacemaker pulses
• blanks the pacemaker pulses from the waveform—preventing them from disturbing the
ECG waveform and allowing for an accurate QRS detection
• displays vertical dashed lines to indicate the detected pacemaker signals
If the Pacer Indicator setting is OFF , the Propaq M does not perform the following actions:
• detect the implantable pacemaker pulses
• blank the pacemaker pulses from the waveform
• display the vertical dashed line pacer markers
You can turn the Pacer Indicator ON/OFF from the Setup->ECG menu.
There are situations where ECG artifact could simulate pacemaker signals which could cause
false pacemaker detection and blanking. These situations may cause inaccurate QRS detection
and it may be desirable to turn the Pacer Indicator
off . Inversely, when the Pacer Indicator
setting is OFF , implantable pacemaker signals may cause inaccurate QRS detection and it may
be desirable to turn the Pacer Indicator on.
ECG System Messages
When monitoring ECG, the Propaq M unit may display the following messages:
System Message Cause
LEAD FAULT The current ECG source lead is defective (check
lead and replace, if necessary).
-- OR --
An unavailable waveform source has been specified
for the trace display (check specified waveform
source and correct, if necessary).