VE-H100B Veterinary Pulse Oximeter User Manual
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Check the displayed SpO
2
value against the simulator
configuration. The value should be 85% ±2%.
6.5 Assessing the Validity of a SpO
2
Reading
You can check the quality of the pleth wave and the stability of
the SpO
2
values to assess whether the sensor functions properly
and whether the SpO
2
readings are valid. Always use these two
indications simultaneously to assess the validity of a SpO
2
reading.
Generally, the quality of the SpO
2
pleth wave reflects the quality
of the light signals obtained by the sensor. A wave of poor quality
manifests a decline of the signal validity. On the other hand, the
stability of the SpO
2
values also reflects the signal quality.
Different from varying SpO
2
readings caused by physiological
factors, unstable SpO
2
readings are resulted from the sensor’s
receiving signals with interference. The problems mentioned
above may be caused by patient movement, wrong sensor
placement or sensor malfunction. To obtain valid SpO
2
readings,
try to limit patient movement, check the placement of the sensor,
measure another site or replace the sensor.
NOTE:
The pulse rate accuracy is obtained by comparison to the
pulse rate generated with an arterial oxygen simulator (also
an electronic pulse simulator).
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