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Electrode placement
4
User guide
Basics
4.1
CARDIOVIT AT-1 G2
4 Electrode placement
4.1 Basics
Careful application of the electrodes and good electrode contact is important for a
good recording (see electrode positioning on pages
23 - 25
).
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 (see accessories)
2. Before using disposable electrodes, check that the expiration date has not yet
passed.
3. 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.
–
1
When applying the electrodes, ensure that a layer of gel is between the elec-
trode and the skin.
4. Check the electrode resistance as described in the section
4.5
.
5. 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.
– Apply the electrode. Always use a new disposable electrode.
6. Ensure that the patient is warm and relaxed before you start the recording.
7. After the recording, remove the electrodes. Clean the suction or vacuum
electrodes according to the manufacturer's instructions.
Ensure that neither the patient nor the leading parts of the patient connection nor
the electrodes (including the neutral electrodes) come in contact with other
persons or conductive objects, even when these are earthed.
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.