Troponin blood test

Key facts A troponin blood test is often done in people with chest pain. Troponin is a protein found in your heart muscle. When your heart muscle is injured, troponin is released into your bloodstream. A troponin blood test can help to work out if your chest pain is caused by a heart attack. What is a troponin blood test? A troponin blood test is often done in people with chest pain. It can help to work out if your pain is caused by a heart attack. The troponin blood test has replaced cardiac enzyme blood tests, as it is