A troponin test measures the level of troponin in your blood. Troponin is a type of protein found in the muscles of your heart. Troponin isn't normally found in the blood. When heart muscles become damaged, troponin is sent into the bloodstream. As heart damage increases, greater amounts of troponin are released in the blood.
High levels of troponin in the blood may mean you are having or recently had a heart attack. A heart attack happens when blood flow to the heart gets blocked. This blockage can be deadly. But quick diagnosis and treatment can save your life.
Other names: cardiac troponin I (cTnI), cardiac troponin T (cTnT), cardiac troponin (cTN), cardiac-specific troponin I and troponin T


For the purposes of determining if a heart attack or an injury to the heart has happened and monitoring the worsening of angina (chest pain related to heart trouble).


This test should be performed immediately after having signs and symptoms associated with a heart attack (e.g. pain in your chest, shoulders, neck, jaw and/or shortness of breath). After the initial test, additional testing should follow as a series of troponin tests over several hours. Testing should also be done if you have been diagnosed with angina and your symptoms have worsened.


There is no preparation necessary for this test. However, your doctor or ER personnel should be informed about any over the counter/prescription medications and supplements you are taking.

    • Why do I need this test?


    • You may need this test if you have been admitted to the emergency room with symptoms of a heart attack. These symptoms include:


    • Chest pain or discomfort.
    • Pain in other parts of the body, including your arm, back, jaw, or neck.
    • Trouble breathing.
    • Nausea and vomiting.
    • Fatigue.
    • Dizziness.
    • Sweating.


  • After you are first tested, you will probably get retested two or more times over the next 24 hours. This is done to see if there are any changes in your troponin levels over time.


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Note: The medical information provided here in this website is for informational purposes only and is not to be used as a substitute for professional medical advice, diagnosis or treatment.