Operator's Manual

Table Of Contents
Radical-7 Chapter 6: Alarms and Messages
www.masimo.com 160 Masimo
The PI Delta provides an audible and visual alert to important changes in
perfusion compared to the patient’s baseline PI rate. The baseline is set
by the Radical-7 once the user has enabled the alarm. The baseline is 30
seconds of currently averaged PI. The feature includes a user-selectable PI
Delta Alarm. This allows the clinician to request an audible and visual
alarm if perfusion at the monitored site decreases by a specified level
(delta) over a specified window of time. Three of the variables are
selectable by the user within established ranges as noted in
PI Delta
Settings
on page 160.
*De Felice C, Latini G, Vacca P, Kopotic RJ. The pulse oximeter perfusion
index as a predictor for high illness severity in neonates. Eur J Pediatr.
2002;161:561-562.
PI Delta Settings
From the
PI Delta Settings
screen, access the following screens:
Perfusion Index (PI) Delta Alarm Overview
on page 159.
About Parameter Information
on page 88.
PI Delta Alarms
From the
Alarms
screen, change any of the following options: