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Heart Disease Health Center

Electrocardiogram (EKG, ECG) Directory

An electrocardiogram (EKG, ECG) is a test in which electrode patches are attached to the skin to monitor the electrical activity of the heart. ECGs can observe heart rhythm, diagnose heart attacks, examine blood flow to and from the heart, and more. There are several types of ECGs that may be done depending on what your doctor is looking for. Follow the links below to find WebMD's comprehensive coverage about how electrocardiograms are done, what results mean, and much more.

Medical Reference


Thumbnail: The New Heart Tests: Which Ones Should You Have?

Experts explain the pros and cons of coronary calcium scores, carotid artery ultrasound, and CT heart scans.

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