There are several: Resting ekg ekg with exercise or after certain medications that stress the heart. Injection of radioactive substances. The heart muscle will show up less dark in areas supplied by the blocked artery. Direct pictures of the arteries (cat scan or mri).
Answered 7/5/2012
6.3k views
Multiple: A stress test can be suggestive of a blockage. Or more invasive tests such as a cardiac catheterization or a nuclear test or even a cat scan can be diagnostic.
Answered 3/27/2014
6k views
A routine : ECG can usually detect a block
Answered 9/28/2016
3.7k views
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