![]() You can typically return to your usual activities after your electrocardiogram. Moving, talking or shivering may interfere with the test results. Make sure you're warm and ready to lie still. ![]() You can breathe during the test, but you will need to lie still. A computer records the information and displays it as waves on a monitor or on paper. They record the electrical signals that make the heart beat. The electrodes are sticky patches with wires that connect to a monitor. Duringĭuring an ECG, up to 12 sensors (electrodes) are attached to the chest and limbs. Once you're ready, you'll typically be asked to lie on an examining table or bed. If you have hair on the parts of your body where the electrodes will be placed, the care provider may shave the hair so that the patches stick. You may be asked to change into a hospital gown. What you can expectĪn electrocardiogram can be done in a health care provider's office or hospital. These can often affect the results of an ECG. Tell your health care provider about any medications and supplements you take. No special preparations are necessary for a standard electrocardiogram. Some people develop a slight rash where the patches were placed. You may have minor discomfort, similar to removing a bandage, when the electrodes are removed. The electrodes only record the electrical activity of the heart. There is no risk of electrical shock during the test because the electrodes used do not produce electricity. Pulmonary atresia with ventricular septal defectĪn electrocardiogram is a safe procedure.Pulmonary atresia with intact ventricular septum.Premature ventricular contractions (PVCs).Orthostatic hypotension (postural hypotension). ![]()
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