Page 47
Recording an ECG
4
User Guide
Placing the Electrodes
4.1
A
rt.
no.
:
2.
511
335
Rev.
a
CARDIOVIT CS-104
4.1.2
Basics
Careful application of the electrodes and good electrode contact is important for a
good recording. A minimal resistance between skin and electrode is required to obtain
the best ECG signal and ensure the highest quality ECG recording. Therefore, please
note the following points:
1. Only use electrodes that are recommended by SCHILLER AG.
2. Ensure that the patient is warm and relaxed before you start the recording.
3. Before using disposable electrodes, check that the expiration date has not yet
passed.
4. To increase the electrode's conductivity and adherence:
– Shave the areas where the electrodes are to be placed, if necessary.
– Thoroughly clean the areas with alcohol or soapy water.
– Let the skin dry before applying the electrodes.
– When applying the electrodes, ensure that a layer of gel is between the elec-
trode and the skin
1
.
5. Check the electrode resistance
(see para. 4.4, Electrode Check, page 61).
If the
electrode resistance is higher than the acceptable level:
– Remove the electrode and use an abrasive cleaning pad or abrasive cleaning
gel
2
to remove the uppermost layer of epidermis. Reapply a new disposable
electrode.
1. Electrode gel is integral with single-use electrodes and extra gel does not need to be applied
when single-use electrodes are used. For biotab electrodes, solid conductive gel is incorpo-
rated in the adhesive.
2. Dedicated abrasive cleaning gel gives very good results in reducing the skin-electrode re-
sistance.
