Nellcor OXIMAX N-560, Руководство оператора

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Technical Information
N-560 Operator’s Manual 89
Figure 6: Alarm Response with SatSeconds
Saturation levels may fluctuate rather than remaining steady for a period
of several seconds. Often, %SpO
2
levels may fluctuate above and below
the alarm limit, reentering the non - alarm range several times.
During such fluctuation, the N - 560 integrates the number of %SpO
2
points, both positive and negative, until either the SatSeconds limit
( SatSeconds setting) is reached, or the %SpO
2
level returns within a
normal range and remains there.
SatSeconds “Safety Net”
The SatSeconds “Safety Net” is for patients whose saturation levels
frequently go below the limit but do not stay below the limit long enough
for the
SatSeconds setting to be reached. When 3 or more limit violations
occur in 60 seconds, an alarm will sound even if the SatSeconds setting
has not been reached.