Arrhythmia Alarms 7 ECG, Arrhythmia, ST and QT Monitoring
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– If there is an active Vent Bigeminy alarm, a PVCs > xx/min will not be triggered because it is
lower on the same chain. However, a high HR alarm will become active because it is on a
different chain.
– Higher priority alarms supersede previous alarms. For example, if a Vent Trigeminy alarm is active
and a Pair PVCs occurs, the Pair alarm will be activated.
Understanding PVC-Related Alarms
PVC-related alarms are detected on the basis of the current ventricular heart rate and the number of
consecutive PVCs counted (referred to as PVC Runs).
Example: This diagram illustrates the conditions under which PVC alarms would be generated if the
Vent Rhythm Run limit is set to 12, the V-Tach Run Limit is set to eight, and the V-Tach HR Limit
is set to 100.
Red Arrhythmia Alarms
Asystole
Vent Fib/Tach
V-Tach
Extreme Tachy/Extreme Brady
Yellow Arrhythmia Alarms
PVC Alarms Chain
Beat Detection Alarms Chain
Rate Alarms Chain
Pacer Not Captured/
Pacer Not Pacing/
Missed Beat
HR High/ HR Low
*
PVCs > xx/min
Non-sustain VT/
Vent Rhythm
Run PVCs
R-on-T PVCs
Pause
SVT
Multiform PVCs
Vent Bigeminy
Vent Trigeminy
Irregular HR
(occurs only if no other
arrhythmia alarms are
present)
First level
timeout
period
(TimeOut
1st
)
Second
level
timeout
period
(
TimeOut
2nd
)
Pair PVCs
lower priority higher priority
AFib
*If HR High/Low alarms are configured as standard yellow alarms,
they are independent of the arrhythmia alarms and are not in the Rate
alarms chain.