Monitoring SpO
2
8-6
After approximately 10.9 seconds, a Sat-Second alarm would sound, because the limit of 50
Sat-Seconds would have been exceeded.
Saturation levels may fluctuate rather than remaining steady for a period of several seconds.
Often, the patient % SpO
2
may fluctuate above and below an alarm limit, re-entering the
non-alarm range several times. During such fluctuation, the monitor integrates the number of
%SpO
2
points, both positive and negative, until either the Sat-Seconds limit is reached, or the
patient%SpO
2
re-enters the non-alarm range and remains there.
SpO
2
%
Seconds