Patient Monitor User Manual Monitoring SpO
2
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3 When a trend toward patient deoxygenation is indicated, analyze the blood samples
with a laboratory co-oximeter to completely understand the patient’s condition.
4 SpO
2
waveform is not directly proportional to the pulse volume.
5 The device is calibrated to display functional oxygen saturation.
6 Functional tester or simulator can not be used to assess the SpO
2
accuracy.
However, it can be used to demonstrate that a particular monitor reproduces a
calibration curve that has been independently demonstrated to meet a particular
accuracy.
7 If the surrounding temperature increases, the operator should pay attention to the site
of poor perfusion, and increase the frequency of checking the skin and changing the
measurement site to prevent burns. If the initial skin temperature is less than 35°C,
the temperature of all the listed sensors on the skin will not exceed 41°C during
working.
14.3 Monitoring Procedure
1. Switch on the monitor.
2. Attach the sensor to the appropriate site of the patient finger.
3. Plug the connector of the sensor extension cable into the SpO
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socket on the monitor.
Figure 14-1 Mounting of the Sensor
WARNING
Inspect the application site every two to three hours to ensure skin quality and correct
optical alignment. If the skin quality changes, move the sensor to another site. Change
the application site at least every four hours. For neonate, change the measuring site
every 20 minutes.
NOTE:
1 Injected dyes such as methylene blue or intravascular dyshemoglobins such as
methemoglobin and carboxyhemoglobin may lead to inaccurate measurements.
2 Inspect the sensor to ensure that the light emitter and receiver are aligned with each
other and there is no gap between the sensor and the finger. All the light emitted by
the light emitter must pass through the patient's tissue. The sensor cable should be
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