Philips EarlyVue VS30 - Desaturation Alarm (Desat)

EarlyVue VS30 Instructions for Use 5-9
Desaturation Alarm (Desat)
Desaturation Alarm (Desat)
In addition to the alarm that sounds when the high or low SpO
2
limit is exceeded, SpO
2
has a Desaturation (Desat) alarm. The Desat alarm is a high-priority alarm that alerts you
to a potentially life-threatening drop in oxygen saturation. The Desat alarm is not
configurable; it is based on the current SpO
2
low alarm limit. The Desat alarm limit is fixed
at 10 less than the current low limit for adults and pediatric patients and 5 less for
neonates.
The current Desat alarm delay value is displayed at lower left of the SpO2 menu.
SpO
2
Alarm Delay
Your system administrator can set an alarm delay for both the High/Low alarm and the
Desat alarm. When a delay is set, the alarm does not sound until two conditions are met:
• The SpO
2
value exceeds the High/Low or Desat alarm limit.
• The configured alarm delay time elapses.
If your system administrator configures an SpO
2
alarm delay time, and the SpO
2
value
exceeds the current high or low alarm limits, the monitor does not issue an SpO
2
alarm
until the specified alarm delay time elapses. For example, if your system administrator
sets the SpO
2
alarm delay time to 10 seconds, the monitor will generate an alarm if the
SpO
2
value exceeds the high or low alarm limits for more than 10 seconds.
The SpO
2
Alarm Delay can be up to 30 seconds for the High/Low setting and for the
Desat setting. The current values for both delays are displayed in the SpO
2
menu. If your
system administrator has not configured an alarm delay, its value displays as 0 seconds.
In the following example, the SpO
2
settings are configured on the monitor as follows:
• The SpO
2
low alarm limit is 90%.
• The Desat alarm limit is 80% (10 less than the current SpO
2
low alarm limit).
• The SpO
2
high/low alarm delay is 10 seconds.
• The SpO
2
Desat alarm delay is 10 seconds.