H10 Finger Oximeter User Manual
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7 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,
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