Filter
Top Products
Event Triggers 23 Event Surveillance
245
If you use alarm limits as event triggers, the event capture is triggered automatically when your
patient’s values violate set alarm limits, or when a specified alarm condition, such as apnea, occurs. No
events of this kind are triggered if alarms are switched off. Changing alarm limits changes the event
trigger definitions.
The asterisk symbols beside the trigger tell you about the alarm triggers:
*** indicates a high priority (red) alarm
** indicates a lower priority (yellow) alarm. This category includes short yellow arrhythmia alarms,
which may be configured to be shown as one star alarms (*) on your monitor.
Triggers without asterisk symbols are user-defined triggers.
If you set user-defined threshold triggers, you can define event triggers that are independent of alarm
limits. You must set a threshold value and a threshold time for the trigger. If you set the trigger
threshold time to 12 seconds, the monitor triggers an event if the threshold is violated for more than 12
seconds.
If you set On Measurement triggers, you can set aperiodic measurements (such as NBP) or
procedures (such as Cardiac Output) to trigger an event whenever they start.
If you set user-defined deviation triggers, you can define event triggers that are independent of
specific limits and based instead on deviations from the current values. You must set a deviation and a
period of time in which the deviation occurs. There are three types of deviation available:
ANY
deviation
, UP deviation where only changes in a positive direction are detected and DOWN
deviation
where only changes in a negative direction are detected. The deviation can be defined
either in relative terms as a percentage, for example 10%, or as an absolute value, such as 10 bpm.
Event Retriggering
If a condition that triggered an event persists and the values remain beyond the trigger threshold, a new
event will not be triggered.
For a new event to be triggered by the same condition, the measured values for at least one of the
triggers must cross back into the normal range and then recross the trigger threshold.
Event Notification
(Advanced Event Surveillance Only). You can be notified when an event is detected. For each event
group you can define a type of notification depending on the severity of the event conditions. The
notification can be a status message with a prompt tone or a standard *, **, or *** alarm notification.
These event alarms are handled exactly like measurement alarms; they can be silenced and are also
suspended when all alarms are suspended. You should only use alarm notification for events which are
comparable in severity to standard measurement alarms to avoid potential confusion due to too many
alarms. Notification in the form of an alarm is not available when the trigger condition is
At Least
One Param
. Selecting None switches event notification off.
Setting the type of notification, or switching notification off, is done in Configuration Mode.
Setting Triggers for NER and Basic Event Surveillance
1 Select Main Setup -> Event Surveill. -> Setup Events to enter the Event Setup
window.