Possible Sources Of Errors With The Ecg Recording; Preparation; Application Of Electrodes - mbnet Engineering ergo vac Operating Manual

5.1 Placement of Electrodes
1 Only use electrodes that are recommended by mbnet Engineering GmbH.
2 To increase the electrode's conductivity and adherence:
3 Check the electrode resistance.
4 If the electrode contact is higher than the acceptable level:
5 Ensure that the patient is warm and relaxed before you start the recording.
6 After the recording, remove the electrodes by pressing on the cleaning button.
Clean the suction or vacuum electrodes according to the manufacturer's instructions.
*
Dedicated abrasive cleaning gel gives very good results in reducing the skin-electrode resistance.
5.2

Possible Sources of Errors with the ECG Recording

5.2.1

Preparation

If you are using new electrodes or those, which have not been used for a long time and have
therefore dried out, first stabilise the electrodes by placing them for at least three hours in a
1% salt solution (NaCl solution).
IMPORTANT: Use only pure NaCl and distilled or deionised water for this. No tap water!
Do not use physiological salt solution from a pharmacy! This contains additives, which can
damage the electrodes!
5.2.2

Application of Electrodes

The areas of skin to which the electrodes will be applied must be clean and dry. Use an
electrolyte ECG spray, which contains soluble chloride.
Do not use ECG gel! Only ECG spray!
Remove any skin cream!
Shave the areas where the electrodes are to be placed, if necessary.
Thoroughly clean the areas with alcohol or soapy water
(skin cream is often applied above all during the winter as this will
increase electrode resistance enormously(!) – Always COMPLETELY
remove skin cream at the application sites!)
Let the skin dry thoroughly before you apply the electrodes.
Remove the electrode and use an abrasive cleaning pad or abrasive
cleaning gel to remove the uppermost layer of epidermis.
Apply the electrode.
User guide
ergo vac
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