How to Change ECG Electrodes

Automaticity is the ability of the heart to depolarize without the intervention of other body systems. This is possible because the heart is controlled by its own electrical system. An electrocardiogram (ECG) is a cardiac diagnostic device used in the medical field. Disposable electrodes are placed on the patient's skin and then connected to wire leads. The ECG machine sends an electrical signal through the electrodes to determine the flow of electricity through the heart. The electrodes are disposable and should be changed after use. Changing electrodes is an easy process that only takes a few minutes to complete.

Instructions

• 1

  Lift the tab of the electrode. The tab is the area of the electrode that does not contain adhesive.

• 2

  Pull the electrode off the skin in a slow, steady motion. Keep a low angle to avoid damaging the the skin. Damaging the skin will create disruptions in ECGs performed later.

• 3

  Clean the skin using an alcohol prep wipe. Wipe the skin using an outward circular motion. This motion will move any dirt away from the site. Allow the skin to dry before applying new leads.

• 4

  Remove the electrodes from the package. Holding the electrode by the tab, lift the backing from the adhesive. Make sure you do not touch the adhesive backing. The quality of the lead placement will determine the quality of the ECG.

• 5

  Place the electrodes in place. Press down gently to ensure even adhesion.

• 6

  An ECG machine with snapping leads.

  Connect the leads of the ECG to the electrodes. Some ECG models using a snap system to connect the lead to the electrode. In this system, place the housing of the lead over the metal snap and press down until you hear a snapping sound. Other ECG systems use a clip system. To connect leads to a snap system gently squeeze the forked end of the lead and place it on the metal end of the electrode.