U Sing A Dview 2 F Or P Ulse O; General Principle Of Operation - ADC ADView 2 User Manual

7. Using ADView 2 for Pulse Oximetry
An optional SpO module allows you to measure the oxygen saturation of arterial bloodflow and display the reading
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on the ADView 2. There are two different types of optional SpO

General Principle of Operation:

The pulse oximeter directs red and infrared light into a capillary bed and measures the change in light absorption
during the pulsatile cycle. Red and infrared light-emitting diodes (LEDs) in oximetry sensors serve as the light
sources, and a photodiode serves as the photo detector.
Traditional pulse oximetry assumes that all pulsations in the light absorbance signal are caused by oscillations in the
arterial blood volume.
The traditional pulse oximeter calculates the ratio of pulsatile absorbance (AC) to the mean absorbance (DC) at each
of two wavelengths (typically one visible, the other infrared). The oximeter then calculates the ratio of these two
arterial absorbance signals. This value is used to find the saturation SpO
software. The values in the table are based upon human blood studies against a laboratory co-oximeter on healthy
adult volunteers in induced hypoxia studies. The resulting value is reported as oxygen saturation level (%).
WARNING: Pulse oximeter probes and sensors are designed for use with specific pulse oximeter devices. Only use
probes and extension/adapter cables that are specified for each SpO
WARNING: The responsible organization and/or operator must verify the compatibility of the oximeter, oximeter
probe, and extension/adapter cable before use. Otherwise, patient injury can result.
WARNING: Misapplication of a pulse oximeter probe with excessive pressure for prolonged periods can induce
pressure injury.
CAUTION: Inaccurate measurements may be caused by:
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Incorrect sensor application or use. Proper sensor use and placement is critical for good performance.
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Significant levels of dysfunctional hemoglobins (e.g., carboxyhemoglobin or methemoglobin)
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Intravascular dyes such as indocyanine green or methylene blue.
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Dyes or any substance containing dyes that affect light absorption may cause erroneous readings.
•
Some nail polish colors (particularly dark shades) or artificial fingernails may reduce light transmission and
affect pulse oximetry accuracy. Remove any nail polish or artificial fingernails before using the SpO
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Exposure to excessive illumination, such as surgical lamps (especially ones with a xenon light source),
bilirubin lamps, fluorescent lights, infrared heating lamps, or direct sunlight (exposure to excessive
illumination can be corrected by covering the sensor with a dark or opaque material)
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Excessive patient movement.
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Abnormal pulse rhythm.
93-9005-00
September 1, 2016
modules: ChipOx and Masimo SET
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in a standard table built into the oximeter
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module.
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.
sensor.
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