Logical sequence of tests helps identify heart disease, from the Harvard Heart Letter

Doctors can't easily "open the hood" and peer into the heart, making it difficult to determine the cause of chest pain or identify a person at high risk of having a heart attack. As explained in the May 2013 issue of the Harvard Heart Letter, certain tests can spot the presence or absence of heart disease, help gauge the risk of having a heart attack, and guide what treatment, if any, is needed.

The first test is usually noninvasive, meaning nothing is put into the body and it is not opened in any way. This starter, the treadmill stress test, records how well the heart performs when it is forced to work harder. It may be combined with echocardiography, a nuclear perfusion study, or magnetic resonance imaging to "see" if there are blockages in the coronary arteries that nourish the heart and how much of the heart muscle is affected by poor blood flow. The results of these tests are used to determine whether blood flow can be improved with medication and lifestyle changes, or if a procedure such as angioplasty plus stent placement or bypass surgery is needed.

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