Blood test determines if you had a heart attack

December 29, 2011 6:13:57 PM PST
A new blood test could help determine whether someone is really having a heart attack.

The test measures levels of troponin.

It's a protein released into the blood when the heart muscle is damaged, such as during a heart attack.

The higher the level, the more damage there is to the heart.

By using the test, doctors could know within three hours whether a patient who's come to the hospital with chest pains has definitely had a heart attack.

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