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Chapter 6 Parameter Monitoring
--42-- User Manual of Veterinary Monitor
II. Testing Method
This series of monitors measure ECG waveform and data by body surface potential mapping method.
Body surface potential measure is recorded by placing several electrodes on chest and back, and
simultaneously record ECG waveforms from each electrode site at each sampling moment. Since over 200
electrodes are used to measure the body surface potentials, this method can provide the cardio electric
potentials of a great many sites on the body surface, which allows a full view of the cardio electric field on
the entire body surface and the profile of the electrical cardiac activities for the whole cardiac cycle
(especially P-waves, QRS complex and T-waves).In addition, it can also plot extreme locus diagram as an
representation of motion locus of cardio electric maximum and minimum values within a given cardiac
interval.
6.1.2 Definition of ECG Monitoring
ECG Monitoring is aimed at precisely evaluating the current physiological conditions of an animal by producing
continuous waveforms of his/her cardio electric activities. To this end, normal connection of the cardio electric
lead cables should be guaranteed in the interest of accurate measured values.
The animal cable is comprised of two parts:

The trunk is the connection with the monitor and lead equipment to animals.

Parameters displayed on the monitor include: heart rate (HR), ST segment measured value and arrhythmia.
6.1.3 ECG Intended Use

Diagnostic of this series of ECG monitor‘s application include: check the cardiac abnormalities of the
general population, check the chest pain in animals with acute myocardial ischemia and myocardial
infarction, check animals with arrhythmias;

Suitable for: Vet > 20 kg, Vet from 10 to 20 kg, and Vet < 10 kg;

Used in: hospitals, clinics;
6.1.4 Safety Information
Warning

It should be guaranteed that no electrode or cable that is being connected comes in contact with
other conducting parts or grounding and that all ECG electrodes are connected to the body surface
of the animal.

Skin where electrodes are placed should undergo regular checks, and electrodes should be
changed or replaced in case of any allergy.

Non-defibrillation ECG cables are prohibited for use when defibrillation is needed for animals.

During defibrillation, contact with animals, desks or instruments is NOT allowed.

Interference caused by ungrounded instruments around the animal and ESU interference may
result in distorted waveforms.

Appropriate electrodes should be used; a large electrical potential deviation may be produced when
some electrodes are polarized. Spherical electrodes during ECG recording produce a polarization
effect more easily.

Electrodes should be appropriately used and placed by following guidance from the manufacturer.
The display screen can be restored as normal 10 sec after the defibrillation.