P1 Patient Monitor User’s Manual
10-1
Chapter 10 SpO
2
10.1. Introduction
Pulse Oxygen Saturation (SpO
2
) monitoring is a non-invasive technique used to
measure the amount of oxygenated haemoglobin and pulse rate by measuring the
absorption of selected wavelengths of light. The light generated in the emitter side of the
probe is partly absorbed when it passes through the monitored tissue. The amount of
transmitted light is detected in the detector side of the probe. When the pulsative part of
the light signal is examined, the amount of light absorbed by the haemoglobin is measured
and the pulse oxygen saturation can be calculated. This device is calibrated to display
functional oxygen saturation.
The measurement value from the Masimo SpO
2
module or Nellcor SpO
2
module is
labeled SpO
2
L and the measurement value from the BLT SpO
2
module is labeled SpO
2
.
10.2. Safety Information
WARNING:
Use only SpO
2
sensors specified in this manual. Follow the SpO
2
sensor’s
instructions for use and adhere to all warnings and cautions. The SpO
2
probe
specified in the manual has been tested with the monitor and meets the
requirements of ISO80601-2-61.
Before use, the operator needs to verify the compatibility between the monitor,
probe and cable. Otherwise, it may cause injury to the patient.
When a trend toward patient deoxygenation is indicated, analyze the blood
samples with a laboratory co-oximeter to completely understand the patient’s
condition.
Do not use SpO
2
sensors during magnetic resonance imaging (MRI). Induced
current could potentially causes burns. The sensor may affect the MRI image,
and the MRI unit may affect the accuracy of the oximetry measurements.
For prolonged continuous monitoring of the patient, the SpO
2
snesor should be
checked every 2 hours to see where it is attached, and change the application
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