Operation manual
Ergometer CRG 200 v.5xx
IU-AT-77-C_I_ENG
ASPEL S.A.
19.05.2020
Strona 19 z 31
3.2. Patient preparation
After a cardiologist has established types of leads appropriate for a given patient it is
necessary to comply with the following guidelines for the examinations to be of high-
quality:
o
Attach electrodes to the ossified area above the ribs or sternum in order to
reduce muscle interferences. When an electrode is placed over large muscle
areas or between the ribs a high-frequency artefact is formed that significantly
disturbs the signal. Placing an electrode over fatty areas also causes signal
disturbances.
o
All hair at the site of electrode placement should be removed during dry
shaving.
o
The electrode placement site needs to be carefully cleaned of dirt and fat from
the superficial epithelium. It should be done by rubbing the site with abrasion
cream (do not use spirit, use gauze not a compress due to better abrasive
properties.)
o
The middle of the site where a contact part of an electrode will be in contact
with the skin should be wiped with gauze with abrasive cream so as to remove
the superficial layer of dead epithelial cells (epithelial abrasion.) Before sticking
electrodes remove the remains of abrasive cream and exfoliated epithelial cells
with a gauze pad. As a result the electrical contact between the skin and
electrode surface will be better and a signal of high-quality will be obtained.
o
Electrodes should be stuck in a way ensuring their good adhesion and so as not
to squeeze electrolyte gel from a sponge placed between the skin and the metal
part of the electrode.
o
When connecting electrodes special attention should be paid so as the
conducting parts of electrodes and the patient cable would not touch each other
or other metal parts including protective grounding.
o
When the electrodes are attached inappropriately the letters INOP are visible (in
a window of Ergometer controlling software.)
