Rapid Heart Attack Screening - Qualitative Troponin I Test

A rapid immunoassay (point-of-care test) uses lateral flow technology (such as test strips) to qualitatively detect the presence of cardiac troponin I (cTnI) protein in a blood or serum sample within predefined detection limits. It works on the principle of antibodies binding to troponin I protein, which is released into the bloodstream when heart muscle cells are damaged, such as in a heart attack (myocardial infarction). A qualitative result (positive/negative) provides a rapid indication but is less sensitive and accurate than quantitative laboratory testing and is used for rapid initial screening.