5 - 1
5 Monitoring ECG
5.1 ECG Safety Information
• ECG monitoring is not suitable for direct cardiac application.
• Periodically inspect the electrode application site to ensure skin quality. If the skin quality changes,
replace the electrodes or change the application site.
• Use defibrillation-proof ECG cables during defibrillation.
• When monitoring a patient implanted with a pacemaker, be sure to select correct paced status.
Otherwise, the pace pulses may be counted in the case of cardiac arrest or some arrhythmias. Do not
completely rely on the heart rate reading or the heart rate alarms. Always keep paced patients under
close surveillance.
• PACEMAKER PATIENTS – On ventricular paced patients, episodes of Ventricular Tachycardia may not
always be detected. Do not rely entirely upon the system’s automated arrhythmia detection
algorithm.
• Interference from a non-grounded instrument near the patient and electrosurgery interference can
cause problems with the waveform.
• When connecting electrodes and/or patient cables, make sure that the connectors never come into
contact with other conductive parts, or with earth. Particularly make sure that all of the ECG
electrodes are attached to the patient.
• If selected lead cannot provide valid ECG signals, a dash line is shown in the ECG waveform area.
• Avoid using external paddles for ECG monitoring if possible.
• Use the same type of ECG electrodes when monitoring ECG through ECG lead set.
5.2 Preparing for ECG Monitoring and Measurement
5.2.1 Using ECG Electrodes
• When using electrosurgical units (ESU), place ECG electrodes between the ESU and its grounding
plate to prevent unwanted burns. Never entangle ESU cable and ECG cable together.
• When using electrosurgical units (ESU), never place ECG electrodes near to the grounding plate of
the ESU, as this can cause a lot of interference on the ECG signal.
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