User's Manual

Radical-7 Chapter 6: Alarms and Messages
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3D Alarms
3D Alarms include the Desat Index Alarm and the PI Delta Alarm.
Overview of Desat Index Alarm on page 98.
Overview of Perfusion Index (PI) Delta Alarm on page 99.
Overview of Desat Index Alarm
The Desat Index Alarm is a user-selectable feature which allows a clinician to request an
audible and visual alarm if a patient experiences a specified number of desaturations over a
specific period of time.
Traditional high and low SpO2 alarm limits alert clinicians to saturation levels that exceed
user selected thresholds, and these thresholds are typically established at a considerable
change from the patients’ baseline saturation level. However, in select patient populations,
substantial desaturation events that exceed a typical low alarm limit threshold may be
preceded by a cycle of transient desaturations over a limited timeframe, and the ability to
alert clinicians to a cycle of these smaller desaturations may provide an earlier indication of
a potential significant decline in the patient’s status and the need for more focused
monitoring and/or a change in treatment.
To address patient populations at risk for cyclic, moderate desaturations, the option
includes a user-selectable Desat Index Alarm which allows the clinician to request an
audible and visual alarm in the event the patient experiences a specified number of
desaturations beyond a defined level from the patient’s baseline saturation over a specific
window of time, with each of these variables selectable by the user within established
ranges as noted in Desat Index Settings on page 98.
Desat Index Settings
From the Desat Index Settings screen, access the following screens:
Desat Index Alarms on page 99.
Accessing Parameter Information on page 59.