Troponin is a complex of three regulatory proteins (troponin C, troponin I, and troponin T) that are integral to muscle contraction in skeletal and cardiac muscle. In the context of nursing, it is most commonly discussed in relation to cardiac health. When heart muscle damage occurs, troponin levels increase in the blood, making it a crucial biomarker for diagnosing conditions like myocardial infarction (heart attack).
