51
Chapter 10 ECG Monitoring
10.1 Introduction
The ECG monitoring produces a continuous waveform of the patient's cardiac electric activity to enable an accurate
assessment of patient's current physiological state. Only proper connection of the ECG cables can ensure satisfactory
measurement. The monitor displays 2-channel ECG waveforms at the same time in normal working, and provides
3/5-lead monitoring, ST segment analysis and arrhythmia analysis.
n
The patient cable consists of 2 parts;
The cable that connects to the monitor;
The lead set that connects to the patient.
n
For 5-lead monitoring, the ECG can derive two waveforms from two different leads. It is available to
choose a specified lead to monitor from the left side of ECG waveform by using the knob.
n
The monitor displays the Heart Rate (HR), ST segment and Arrhythmia analysis.
n
All parameters above can be set as alarm parameters.
NOTE:
l
In the default settings of the monitor, the ECG waveforms are the top two waveforms displayed in the
waveform area.
10.2 Safety information
WARNING
l
Do not touch the patient, table nearby, or the equipment during defibrillation.
l
Use only the ECG cables and electrodes provided by our company for monitoring.
l
When connecting the cables and electrodes, please do make sure that the cables and electrodes are not in
contact with any conductive part or the earth, especially all the ECG electrodes, including neutral electrodes
are securely attached to the patient. Do not let them contact with any conductive part or the ground.
l
Check the skin attached with ECG electrode patches for irritation everyday. If there is a sign of allergies,
replace the electrodes every 24 hours or change the sites.
l
Before starting the monitoring, inspect whether the lead works normally. Unplug the ECG cable from the
socket, the screen will display the error message "ECG LEAD OFF" and the audible alarm will be
activated.
l
To achieve a successful defibrillation, it is required that all patches related to electrodes should be correctly
attached.
NOTE:
l
Please use defibrillation proof ECG cable during defibrillation.
l
Interference from a non-grounded instrument near the patient and ESU interference can cause inaccuracy
of the waveform.
l
When a ECG device is unable to work, such as "ECG module communication stopped", "ECG module