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Preparing the Patient
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For electrode placement information, refer to the diagram on the top of
your cardiograph.
Proper patient preparation and electrode placement are the most
important elements in producing a high quality ECG trace.
Prepare the patient by performing the following steps.
1. Reassure and relax the patient. A calm and quiet patient produces
the best ECGs.
2. Make sure each electrode site is not covered by hair or clothing.
3. Gently clean and abrade the surface of the skin with dry gauze.
4. Place electrodes on patient. See the notes below regarding your
type of electrodes.
The patient cable should be routed away from power cords and any
other electrical equipment. Failure to do so can result in AC line
frequency interference on the ECG trace.
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Each electrode must be attached securely. Straps must neither slide nor
be so tight as to cause discomfort.
The electrode paste, gel, or creme must cover an area the size of the
electrode, but must not extend beyond it, especially on the chest.
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Disposable electrodes have conductive material on one side only, the
adhesive side. The electrode tab must be placed between the jaws of the
electrode adapter and remain flat. Do not attempt to place the jaws of
the electrode adapter so close to the circular part of the electrode that
the tab of the electrode is bent or contact is made with the conductive
Recording an ECG
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