<prompt> First enzyme to be raised in MI isCPK-MBLDHMyoglobinTroponin-I  <response>: The laboratory evaluation of MI is based on measuring blood levels of macromolecules that leak out of injured myocardial cells through damaged cell membranes these molecules include myoglobin, cardiac troponins T and I TnT, TnI, creatine kinase CK specifically the myocardial isoform, CK-MB, and lactate dehydrogenase. Troponins and CK-MB have high specificity and sensitivity for myocardial damage. Robbins Basic pathology,9th edition.pg no.382 