Cardiac troponin I is a protein found in the cells of your heart muscles. It is released into the bloodstream when your heart muscle is injured. The level of troponin I in the blood can be measured by taking a blood test. In individuals who appear healthy and have no symptoms of cardiovascular disease, the Troponin I Heart Attack Risk helps determine the risk of a future heart attack or other cardiovascular diseases. Add Thyrocare’s Troponin I Heart Attack Risk test to your health checks to help identify your risk of heart.