Operator's Manual

6.1 Electrocardiography (ECG)
Tempus Pro User/Operator Manual - 41-2001EN-00 – Page 71
WARNING
For patients with pacemakers, ensure pacemaker indication is turned on.
WARNING
Arrhythmia analysis is sourced from the ECG signal (including detection of extreme
bradycardia, extreme tachycardia), this is independent of the heart rate display
source selection (ECG or pulse).
CAUTION
Only start arrhythmia learning during periods of predominantly normal rhythm, and when the
ECG signal is relatively noise-free. If arrhythmia learning takes place during ventricular
rhythm, the ectopics may be incorrectly learned as the normal QRS complex. This may
result in missed detection of subsequent arrhythmias.
CAUTION
If arrhythmia analysis is not restarted when a template changes:
 Inaccurate arrhythmia alarms can be triggered.
 Inaccurate heart rates can be recorded.
To optimise arrhythmia detection, select leads with the largest amplitude and the least amount of noise to be
analysed:
1. Turn on arrhythmia analysis in the ECG menu. Arrhythmia detection starts up and performs a
learning period.
2. To change the waveforms being analysed, press Lead waveform selection on the ECG menu and
select the lead required.
3. If a patient's ECG template changes dramatically, turn arrhythmia analysis off and on.
Arrhythmia detection performs a relearning period based on the new template.
An arrhythmia detection relearning period can also be triggered when you:
 Change patients
 Change Lead waveform selection or Heart rate lead options
The following arrhythmia events are detected and recorded:
Arrhythmia Screen
text
Description High priority
patient alarm
triggered
Event /
waveform
capture
Extreme
bradycardia
Extreme
Brady
The average heart rate is 5 bpm below the
low heart rate set on the Tempus Pro (with
a maximum of 60 bpm).
Yes Yes
Extreme
tachycardia
Extreme
Tachy
The atrial and ventricular rates are equal.
The heart rate is 5 bpm above the high
heart rate limit set on the Tempus Pro (with
a minimum of 100 bpm)
Yes Yes
Ventricular
tachycardia
Vent
Tachy
Ventricular HR is greater or equal to the
Tachycardia rate threshold and the number
of PVCs is greater than 6.
Yes Yes
Asystole Asystole No QRS complex for 5 consecutive
seconds (in absence of ventricular
fibrillation or chaotic signals)
Yes Yes
Ventricular
fibrillation
Vent Fib Ventricular fibrillation occurs and persists
for more than 6 seconds.
Yes Yes
A medium priority alarm is triggered when: