Optimizing ECG Measurement Performance
6-32 ECG Monitoring
effects and Smart-hopping enables the system to avoid most instances of
interference.
The 2.4 GHz ISM band used by the ITS4850A IntelliVue Telemetry System is
used by many different radio technologies, (e.g. microwave ovens, wireless
phones, Bluetooth devices). Therefore, there is increased potential for
interference. The system has the ability to detect whether the spectrum is too
congested. When detected, a "Wireless Monitoring Loss - Call Service" alert is
issued at the Information Center.
Corrective Action
1. To improve performance, the source of the interference must be identified
and eliminated. Try moving or removing other wireless devices
transmitting in the Wireless Medical Telemetry Service (WMTS - USA
only). Such devices can be identified by the presence of an antenna and/
or the following symbol:
:
Important—The IntelliVue Telemetry System emits radio frequencies that can
affect the operation of other devices. Contact the manufacturer of other
equipment for possible susceptibility to these frequencies.
Muscle and
Movement
Artifact
Muscle and movement artifact, respiratory variation, as well as poor electrode
contact, inadequate skin preparation, and other patient-related factors can also
affect interference with the ECG signal. Good clinical practice can have a
significant effect on the quality of ECG monitoring.
Corrective Action
Use the following table to help you troubleshoot the most common sources of
physiologically-caused ECG noise.
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