<prompt> The Most sensitive marker of cardiac injury isLDHMyoglobinCPK-MB4Troponin  <response>: D Troponin Plasma biochemical markers: The biochemical markers that are most widely used in the detection of Ml are creatine kinase CK, a most sensitive and cardiospecific isoform of this enzyme CK-MB, and the cardiospecific proteins, troponins T and I. The troponins are also released, to a minor degree, in unstable angina with minimal myocardial damage. 