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Alarm Limits 3Alarms
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If you set the yellow alarm limit outside the red alarm limit, the monitor will automatically set the red
alarm to the yellow alarm limit.
When an ST measurement is in the Change Limits window there are also two pop-up keys
available labeled All ST Narrow/All ST Wide. With these keys you can set Auto Limits for all
ST Leads.
About Automatic Alarm Limits (AutoLimits)
The monitor can automatically set alarm limits suited to your individual patient, using the Automatic
Alarm Limits function. This tells the monitor to adapt the alarm limits of selected measurements to the
measured vital signs within a defined safe limit. The monitor calculates safe AutoLimits for each
patient based on the measured values from the last 12 seconds.
The defined safe limits never exceed the non-pathological range.
Limits Narrow sets limits close to the currently measured values for situations where it is critical
for you to be informed about small changes in your patient’s vital signs.
Limits Wide sets limits further away from the currently measured values for situations where small
changes are not so critical.
♦ Use the keys in the Change Limits window to apply AutoLimits for individual measurements.
These keys are not available if AutoLimits have been disabled for the measurement in the monitor’s
Configuration Mode.
AutoLimits are not available for all measurements. The list of measurements for which AutoLimits can
be used is defined in the monitor’s Configuration mode.
Use the Change Limits window to check AutoLimits before you apply them to ensure that they are
appropriate for your individual patient and their clinical condition. Once applied, AutoLimits are
shown on the monitor screen just like manually-set alarm limits. If the AutoLimits are not appropriate
for your patient, you must set alarm limits manually. The limits remain unchanged until you set them
again or change them manually.
Documenting Alarm Limits
The alarm limits pop-up keys appear with the Alarm Limits and Change Limits windows.
♦ Select the Print Limits pop-up key to print an overview of all alarm limits on a connected
printer.
♦ Select the Record Limits pop-up key to send a recording of the alarm limits to a recorder.
High alarm limit, wide
High alarm limit, narrow
Low alarm limit, narrow
Low alarm limit, wide
Measurement value
Alarm
limits
Upper limit
clamps
Lower limit
clamps