6 ECG, Arrhythmia, ST and QT Monitoring
125
Note: ** HR Low and ** HR High are available only if HR alarms are configured as yellow alarms, and **
HR Low
and * HR High are available only if HR alarms are configured as short yellow alarms.
Using ECG Alarms
ECG alarms can be switched on and off and the high and low alarm limits changed just like other
measurement alarms, as described in the “Alarms” chapter. Special alarm features which apply only to
ECG are described here.
Extreme Alarm Limits for Heart Rate
The extreme rate alarms, extreme tachycardia and extreme bradycardia, are generated by the active
alarm source, either HR or Pulse.
The difference between the low HR alarm limit and the extreme bradycardia limit is unit configured.
For example, if the low alarm limit is 60 bpm and the extreme bradycardia limit difference is
configured to be 20 bpm, then the extreme bradycardia limit is 40 bpm. If the difference is configured
to be 0, there will always be an extreme bradycardia alarm when the HR falls below the HR low limit.
** Pacer Not Capt No beat detected for a period > 1.75
times the average R-R interval and pace
pulse(s) detected. (Paced mode on)
xx
**Pacer Not Pacing No beat detected for a period > 1.75
times the average R-R interval and no
pace pulse(s) detected (Paced mode on)
xx
** SVT A run of consecutive beats labeled as S
with run length ≥ SVT run limit and
ventricular HR > SVT HR limit
x
* HR High Heart rate > the high HR limit x
(see note)
x
(see note)
* HR Low Heart rate < the low HR limit x
(see note)
x
(see note)
* AFIB An irregular rhythm of beats labeled as
N and variability in P-R intervals and
P-wave variability (For adult patient
category only)
x
* End AFIB Atrial Fibrillation no longer detected
for the Afib end delay time (For adult
patient category only)
x
** Irregular HR An irregular rhythm of beats labeled as
N (irregular R-R intervals changes
greater than 12.5%)
x
* End Irregular HR Irregular HR rhythm no longer
detected for the irregular HR end delay
time
x
Alarm Description Arrhythmia Configuration
Arrhythmia
Off
Basic
Arrhythmia
Enhanced
Arrhythmia