Mindray iMEC8 Vet, Руководство оператора

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8-1
8
Monitoring ECG
8.1 Introduction
The electrocardiogram (ECG) measures the electrical activity of the heart and displays it on the monitor as a waveform
and a numeric. This section also tells you about ST monitoring and arrhythmia monitoring.
8.2 Safety
WARNING

Use only ECG electrodes and cables specified by the manufacturer.

When connecting electrodes and/or patient cables, make sure that the connectors never come into contact
with other conductive parts, or with earth. In particular, make sure that all of the ECG electrodes are
attached to the patient, to prevent them from contacting conductive parts or earth.

Periodically inspect the electrode application site to ensure skin quality. If the skin quality changes, replace
the electrodes or change the application site.

Use defibrillator-proof ECG cables during defibrillation.

Do not touch the patient, or table, or instruments during defibrillation.
NOTE

After defibrillation, the screen display recovers within 10 seconds if the correct electrodes are used and
applied in accordance with the manufacturer’s instructions for use.

Interference from a non-grounded instrument near the patient and electrosurgery interference can cause
problems with the waveform.
8.3 Preparing to Monitor ECG
8.3.1 Preparing the Patient and Placing the Electrodes
1. Skin preparation
The quality of ECG waveform displayed on the monitor is a direct result of the quality of the electrical signal
received at the crocodile clip. Proper skin preparation is necessary for good signal quality at the crocodile clip. A
good signal at the crocodile clip provides the monitor with valid information for processing the ECG data. To
ensure enough electrolyte material on the skin of patients, you need to moisten the lead sites with 70% isopropyl
alcohol. This will usually be sufficient for ECG monitoring for a short time (30 to 60 minutes).
2. Attach the ECG leadwires to the crocodile clips prior to placement.
3. Place the crocodile clips to the patient in accordance with 8.3.3 ECG Lead Placements .
4. Connect the ECG leadwires to the patient cable.
5. Make sure the monitor is turned on and is ready for monitoring.