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9
9Monitoring SpO
2
Philips pulse oximetry uses a motion-tolerant signal processing algorithm, based on Fourier artefact
suppression technology (FAST). It provides four measurements:
• Oxygen saturation of arterial blood (SpO
2
) - percentage of oxygenated hemoglobin in relation to the
sum of oxyhemoglobin and deoxyhemoglobin (functional arterial oxygen saturation).
• Pleth waveform - visual indication of patient’s pulse.
• Pulse rate (derived from pleth wave) - detected pulsations per minute.
• Perfusion indicator - numerical value for the pulsatile portion of the measured signal caused by
arterial pulsation.
The monitors are also compatible with SpO
2
technologies from other manufacturers. Please refer to the
instructions for use provided with these devices for further information.
SpO
2
Sensors
Depending on the purchased SpO
2
option, different sensors and adapter cables can be used. The
sensors for the different options are color-coded to match the connectors. See the section on
Accessories for a compatibility table.
Familiarize yourself with the instructions for use supplied with your sensor before using it. In
particular, check that the sensor being used is appropriate for your patient category and application
site.
CAUTION Do not use OxiCliq disposable sensors in a high humidity environment, such as in neonatal incubators
or in the presence of fluids, which may contaminate sensor and electrical connections causing
unreliable or intermittent measurements. Do not use disposable sensors on patients who have allergic
reactions to the adhesive. Always use the MAX-FAST forehead sensor with the foam headband
provided by Nellcor.
Applying the Sensor
1 Follow the SpO
2
sensor’s instructions for use, adhering to all warnings and cautions.
2 Remove colored nail polish from the application site.
3 Apply the sensor to the patient. The application site should match the sensor size so that the sensor
can neither fall off, nor apply excessive pressure. When using the M1195A Infant Finger Sensor,