The Finecare™ One Step cTn I/CK-MB/Myo Rapid Quantitative Test a fluorescence immunoassay to be used along with Finecare™ FIA System for quantitative determination of cardiac Troponin I (cTn I), MB Isoenzyme of Creatine Kinase (CK-MB) and Myoglobin (Myo) in human whole blood, serum or plasma. The test is used as an aid to the diagnosis of myocardial infarction.