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Home > Patient & Family Resources > Health Library > Electrocardiogram and electrode placement
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An electrocardiogram (EKG, ECG) is a test that measures the electrical signals that control heart rhythm. The test measures how electrical impulses move through the heart muscle as it contracts and relaxes.
During an electrocardiogram, small pads or patches (electrodes) are attached to the skin on the chest, arms, and legs. The electrodes are also connected to a machine that translates the electrical activity into line tracings on paper. These tracings are often analyzed by the machine and then carefully reviewed by a doctor for abnormalities.
Current as of:
April 29, 2021
Author: Healthwise StaffMedical Review: Rakesh K. Pai MD, FACC - Cardiology, ElectrophysiologyAdam Husney MD - Family MedicineMartin J. Gabica MD - Family MedicineGeorge Philippides MD - Cardiology
Current as of: April 29, 2021
Author: Healthwise Staff
Medical Review:Rakesh K. Pai MD, FACC - Cardiology, Electrophysiology & Adam Husney MD - Family Medicine & Martin J. Gabica MD - Family Medicine & George Philippides MD - Cardiology
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