Performance Considerations Pulse Oximetry (SpO2)
15 - 12 V Series Operating Instructions
15.4.6 About the SpO
2
Waveform Tile
• Displays in the configured SpO
2
color.
• Provides scrolling, real-time waveform data.
• Scrolls the waveform in the configured sweep speed.
• Automatically scales the SpO
2
waveform data area to maximize the vertical height of the Pleth
waveform for the data range.
• Pleth waveform is the visual indication of patient’s pulse. The waveform is not normalized.
• If using Masimo SpO
2
, the Signal Quality Index (SIQ) may display below the waveform if enabled.
NOTE: Refer to TABLE 15-2 on page 15-6 for additional information.
15.5 Performance Considerations
To ensure optimal performance, use an appropriate sensor, apply it as directed and observe all
warnings and cautions.
If excessive ambient light is present, cover the sensor site with opaque material. Failure to do so may
result in inaccurate measurements. Light sources that can affect performance include surgical lights,
especially those with a xenon light source, bilirubin lamps, fluorescent lights, infrared heating lamps,
and direct sunlight.
When unable to get a reading, or the reading is inaccurate, consider the following:
• If your patient is poorly perfused, try applying the sensor to another site - such as a different
finger or toe.
• Check that the sensor is properly aligned.
• In electrosurgery, make sure sensor is not too close to ESU devices or cables.
• Check to make sure the site area is clean/non-greasy. Clean site and sensor if needed.
CAUTION: A functional tester cannot be used to assess the accuracy of the pulse
oximeter probe or a pulse oximeter monitor.
NOTE: If the supply mains is interrupted during SpO
2
monitoring, the V 12
switches power to battery backup if at least one battery is installed and
charged. If power has been completely interrupted, SpO
2
monitoring
continues when the supply mains is restored or a fully charged battery
is installed, and power has been recycled to the monitor.
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