Depends: The heart muscle cells leak the enzyme troponin into the blood when they are damaged. This occurs commanly in a heart attack when a coronary artery supplying heart muscle is blocked and those downstream cells are damaged. It can also occur, though usually to a much smaller degree in blood clots to the lungs, heart failure, fast abnormal heart rhythms and even pericarditis.
Answered 10/18/2018
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Few things: Troponin is a marker of several heart disorder including heart attack. Other cardiac conditions such as inflammation of the heart muscle, inflammation of the sac around the heart (pericardoum) also can cause troponin release in the blood. Troponin is increased in cardiac contusion, defibrillation of the heart and some cardiac procedures. It is positive up to 10-14 days after the injury.
Answered 4/21/2019
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