Mindray VS 8A, Operator'S Manual

Page: 83 / 278

8 - 1
8
Monitoring Pulse Oxygen Saturation
(SpO
2
)
8.1 SpO
2
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.
SpO
2
monitoring is intended for adult, pediatric and neonatal patients.
The following types of SpO
2
can be configured for the monitor:
■ Mindray SpO
2
: the connector is blue and no logo is on the monitor.
■
Nellcor SpO
2
: the connector is grey and the logo of Nellcor is on the monitor.
■ Masimo SpO
2
: the connector is purple and the logo of Masimo SET is on the
monitor.
NOTE
•
The SpO
2
extension cable should be compatible with the SpO
2
connectors.
For example, you can only connect the Mindray SpO
2
extension cable to the
Mindray SpO
2
connectors.
•
A functional tester or SpO
2
simulator can be used to determine the pulse rate
accuracy.
•
A functional tester or SpO
2
simulator cannot be used to assess the SpO
2
accuracy.