37
Alarm Delay Feature (for Oximeter Module only)
In the traditional alarm management system, upper and lower alarm limits are set so
alarms are issued at specific SpO
2
levels. When the SpO
2
level fluctuates near an
alarm limit, each breach will trigger an alarm. This system monitors the gradient, the
depth and the duration of SpO
2
reduction as the factors to determine the alarm
triggering delay. Therefore, it helps to distinguish between major clinical events and
minor and brief SpO
2
alarm limit violations that may trigger an alarm.
Likewise, when the pulse rate fluctuates near an alarm limit, each breach will trigger
an alarm. With the pulse rate alarm delay feature, this system allows a period of
threshold violation of 5 seconds before an alarm is triggered. Thus, it greatly reduces
alarms reported for minor and brief alarm limit violations.
NOTE:
The following table lists the alarm triggering delay statistics for SpO
2
Low Alarm
Limit.
SpO
2
Low
Alarm Limit
Average Delay
(seconds)
Maximum Delay
(seconds)
≥ 90
50
74
86 - 90
16
20
81 - 85
6
7
76 - 80
4
6
≤ 75
4
5
NOTE:
A countdown timer and "AUDIO OFF" button will be displayed on the MAIN
screen when the alarm limit has been breached and the alarm is being delayed. The
alarm will be delayed until the timer counts down to zero.
Summary of Contents for Guardian Angel GA2000 Series
Page 5: ...4 Guide to Symbols...
Page 6: ...5...
