Operator's Manual

Introduction Monitoring SpO2 (Optional)
8 - 2 TM80/TM70 Telemetry Monitor Operator’s Manual
8.1 Introduction
The chapter describes the SpO
2
monitoring function, including connecting the SpO
2
module, configuring the SpO
2
, and monitoring the SpO
2
. For details about the SpO
2
parameter setup at the Central Monitoring System, refer to Chapter 12 Monitoring with
the TM80/TM70 at the CMS.
SpO
2
monitoring is a non-invasive technique used to measure the amount of oxygen-
ated hemoglobin and pulse rate by measuring the absorption of selected wavelengths
of light. The light generated in the probe passes through the tissue and is converted into
electrical signals by the photo detector in the probe. The SpO
2
module processes the
electrical signal and displays a waveform and digital values for SpO
2
and pulse rate.
The TM80/TM70 can be configured with Masimo SpO
2
module , Nonin SpO
2
module, or
Nellcor SpO
2
module.
8.2 Measurement Limitations
If the SpO
2
measurement seems out of range or inaccurate, check the patient’s vital
signs. Then check the equipment and SpO
2
sensor. The following factors may influence
the accuracy of measurement:
■ Ambient light
■ Physical movement
■ Low perfusion
■ Electromagnetic interference
NOTE
• A functional tester or SpO
2
simulator cannot be used to assess the accu-
racy of a SpO
2
module or a SpO
2
sensor.
• This device is calibrated to display functional oxygen saturation.
• A pulse oximeter should not be used as an apnea monitor.
• Pulse rate measurement is based on the optical detection of a peripheral
flow pulse and therefore may not detect certain arrhythmias. The pulse
oximeter should not be used as a replacement or substitute for ECG
based arrhythmia analysis.
• The MS board pulse oximeter can be used during defibrillation, but the
readings may be inaccurate for a short time.