Philips IntelliVue TRx Instructions For Use Manual page 173

Draft - 1 Aug 08
Understanding SpO Alarms
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below the Low Limit. The SpO high alarm limit can be set between 51 and
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100% inclusive, in 1% increments.
The delay between the physiologic alarm condition and alarm annunciation at
the Information Center is <16 seconds. This means that the Information Center
will generate an alarm if the averaged numeric value on the display exists
beyond the alarm limit for more than a maximum of 16 seconds.
Setting the high SpO alarm limit to 100% is equivalent to switching off the
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high alarm. Therefore the upper alarm limit for oxygen saturation must be
carefully selected in accordance with accepted clinical practices.
The default setting for SpO yellow alarms is latched. That is, when an SpO
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limit is exceeded, you will need to acknowledge it at the Information Center.
The sound will be silenced but the message will remain on the display until the
condition is resolved.
See Chapter 5, "Alarms" for a list of the SpO alarms.
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SpO Monitoring 8-21
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