User's Manual

Telemetry Transmitter User Manual Monitoring ECG
Chapter 15 Monitoring ECG
15.1 Overview
The electrocardiogram (ECG) measures the electrical activity of the heart and displays it on the
telemetry transmitter as a waveform and a numeric. This chapter also tells you about arrhythmia
monitoring and ST monitoring.
15.2 ECG Safety Information
WARNING
1 Only use the ECG leads supplied by the manufacturer when using telemetry
transmitter for ECG monitoring.
2 When connecting the cables and electrodes, make sure no conductive part is in
contact with the ground. Verify that all ECG electrodes, including neutral electrodes,
are securely attached to the patient but not the conductive part or ground.
3 Check every day whether there is skin irritation resulted from the ECG electrodes. If
yes, replace electrodes every 24 hours or change their sites.
4 Place the electrode carefully and ensure a good contact.
5 Check if the lead connection is correct before monitoring. If you unplug the ECG cable
from the socket, the screen will display the error message “ECG LEAD OFF” and the
audible alarm is activated.
6 If the ECG signal exceeds the measuring range, MFM-CMS will indicates it by a
message “ECG Signal Exceeded”.
7 When using the telemetry transmitter with the defibrillator or other high-frequency
equipment, please use defibrillator-proof ECG lead to avoid burn.
8 For patients with pacemakers, the pacing impulse analysis function must be switched
ON. Otherwise, the pacing impulse may be counted as regular QRS complexes,
which could prevent an asystole event from being detected or could lead to false
alarm of asystole.
9 The electrodes should be made of the same metal materials.
10 ECG cables can be damaged when connected to a patient during defibrillation or
using other high frequency equipment. Check cables for functionality before using
them again. It is recommended to use the ECG cables which are defibrillator-proof.
11 ECG accessories are not suitable for DIRECT CARDIAC APPLICATION. (Refer to
IEC60601-1 for more information about the definition of DIRECT CARDIAC
APPLICATION.)
12 Line isolation monitor transients may resemble actual cardiac waveforms and thus
inhibit heart rate alarms. Check lead wires for damage and ensure good skin contact
prior to and during use. Always use fresh electrodes and follow proper skin
preparation techniques.
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