Vital Signs Monitor User Manual Monitoring SpO
2
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11.9 Setting Sensitivity
The different sensitivity indicates different refresh frequency.
High
indicates the refresh
frequency of SpO
2
value is the most frequent. To change the sensitivity, please follow the steps:
1
Select the
SpO
2
Setup
menu;
2
Select
Sensitivity
on the interface and select the desired sensitivity from the popup list.
11.10 Measuring SpO
2
and NIBP Simultaneously
While measuring SpO
2
and NIBP on the same limb simultaneously, the user can enter
SpO
2
Setup
>
NIBP Simul
to choose
ON
or
OFF
. t1~t2 is the duration time of NIBP/SpO
2
Simul
measurement. T1 and t2 respectively means beginning and ending (cuff deflation over) NIBP
measurement.
When NIBP/SpO
2
Simul measurement is set to on:
•
General information area displays
NIBP Simul
;
•
During t1~t2: in monitor mode, there are no SpO
2
and PR (when PR is from SpO
2
)
physiological alarms; in Ward round or spot-checking mode, there are no SpO
2
and PR
(when PR is from SpO
2
) alert information;
•
Before t1 and after t2, there are normal SpO
2
physiological alarms/alert information and PR
physiological alarms/alert information;
•
It will not influence other functions of the monitor.
11.11 SatSeconds Alarm Management
*
*
Only applicable to the Nellcor SpO
2
module.
11.11.1 Describing SatSeconds
With traditional alarm management, upper and lower alarm limits are set for monitoring oxygen
saturation. During monitoring, as soon as an alarm limit is violated by as little as one percentage
point, an alarm is immediately triggered. When the SpO
2
level fluctuates near an alarm limit, the
alarm is triggered each time the limit is violated. Such frequent alarms can be distracting.
With the SatSeconds
technique, upper and lower SpO
2
alarm limits are set in the same way as
traditional alarm management. However, you can also set a SatSeconds
limit that allows
monitoring of SpO
2
below the selected lower alarm limit and above the selected upper alarm limit
for a period of time before an alarm is triggered.
The method of calculation is as follows:
The number of percentage points that the SpO
2
falls outside the alarm limit is multiplied by the
number of seconds that the SpO
2
level remains outside that limit. This can be stated as an
equation:
Points
×
Seconds = SatSeconds