User's Manual

Radical-7 Chapter 6: Alarms and Messages
www.masimo.com 102 Masimo
3D Alarms
3D Alarms include the Desat Index Alarm and the PI Delta Alarm.
Desat Index Alarm Overview on page 102.
Perfusion Index (PI) Delta Alarm Overview on page 103.
Desat Index Alarm Overview
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 102.
Desat Index Settings
From the Desat Index Settings screen, access the following screens:
Desat Index Alarms on page 103.
About Parameter Information on page 60.