S12 Vet Monitor User’s Manual
10-6
according to the SpO2 value. For information, see 10.5.5Setting Pitch Tone.
10.5.3. Setting PR Source
Current pulse source is displayed in the PR parameter area. The PR from current pulse
source has the following characteristics:
PR is monitored as system pulse and generates alarms when you select PR as
the active alarm source;
PR is stored in the monitor’s database and reviewed in the graphic/tabular
trends; in trend graphs, as the PR curve is in the same color with that of the
PR source, it is unlikely to distinguish the PR source.
To set which pulse rate as PR source, follow this procedure:
1. Select the SpO2 parameter area or waveform area to enter the【SpO2】menu.
2. Select【PR
Setup】submenu.
3. Select【PR
Source】,and select a suitable PR source in the drop-down list.
The drop-down list of 【PR
Source】displays the currently valid PR source from top
to bottom according to the priority level. When you select【Auto】, the system will
automatically select the first option in the list as the PR source. If the PR source you set
does not exist, the system will automatically switch【PR
Source】to【Auto】. When you
select 【IBP】, the system will automatically use the first pressure label in the list as the
PR source.
10.6. SpO2 Measurement Limitations
If you doubt the SpO2 measurements, check the patient’s vital signs first, then check
the monitor and SpO2 sensor. The following factors may influence the accuracy of
measurements:
There is excessive illumination from light sources such as a surgical lamp, a
brilirubin lamp, or sunlight;
Excessive patient movement;
Diagnostic test;
Low perfusion;
Electromagnetic interference, such as MRI device;
Electrosurgical equipment;