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Electrocardiogram and electrode placement

Where EKG electrodes are placed

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 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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