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6 ECG, Arrhythmia, ST and QT Monitoring
The same is true for the difference between the high HR alarm limit and the extreme tachycardia limit.
In the same way, the extreme tachycardia limit is determined by adding a difference to the high HR
limit.
The difference is set in Configuration Mode. You need to know which value has been configured for
your monitor. To see the difference value for the extreme rate alarms on your monitor, in the
ECG
menu, see the menu items
For safety, the extreme bradycardia and extreme tachycardia limits clamp at a configured value. For
example, the extreme bradycardia limit for neonates has a default limit clamp at 70 bpm. Thus if the
HR low alarm limit is moved to 80 bpm and the extreme bradycardia limit difference is 20 bpm, the
extreme bradycardia limit will be 70 bpm. However, if you move the HR low alarm limit below the
clamp to 65 bpm, the extreme bradycardia limit will also be 65 bpm and only the extreme bradycardia
alarm will occur if the HR falls below this limit.
You can view the current limits for the extreme rate alarms, Extreme Tachy and Extreme Brady, in the
measurement's alarm limits window:
1
Select one of the alarm fields.
Select the
2
Select
3
The alarm limit window for HR is shown, with the high and low limits and the Extreme Tachy and
Extreme Brady limits.
ECG Alarms Off Disabled
Be aware that your hospital department may have decided to disable the
the monitor's Configuration Mode. In this case, HR alarms cannot be switched off in Monitoring
Mode. If you try to switch off the HR alarms, you will see the message
enable Alarms Off
126
Δ ExtrTachy
Alarm Limits
pop-up key.
HR
.
.
1
2
3
4
5
6
and
Δ ExtrBrady
.
High and low alarm limits
1
Extreme Tachy and Extreme Brady limits
2
Extreme Brady Limit
Low Limit
High Limit
Extreme Tachy Limit
Δ Extreme Brady
Δ Extreme Tachy
Setup
Alarms Off
setting for ECG in
To activate enter Config and

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