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Risk of Signal-Averaged Electrocardiogram (ECG)
Risks of the Procedure
A signal-averaged ECG is a quick, noninvasive method of assessing the heart's function. Risks associated with ECG are minimal and rare.
Prolonged application of the adhesive electrode patches may cause tissue breakdown or skin irritation at the application site.
There may be other risks depending upon your specific medical condition. Be sure to discuss any concerns with your physician prior to the procedure.
Certain factors or conditions may interfere with or affect the results of the test. These include, but are not limited to, the following:
- Obesity, pregnancy, or ascites (accumulation of fluid in the abdomen)
- Anatomical considerations such as the size of the chest and the location of the heart within the chest
- Movement during the procedure
- Exercise, intake of high-carbohydrate meal, and/or smoking prior to the procedure
- Certain medications
- Electrolyte abnormalities, such as too much or too little potassium, magnesium, and/or calcium in the blood