Which of the following is a serum enzyme determination used to establish the diagnosis of acute myocardial infarction (MI)and to determine the extent of infarction?

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Serum markers of acute MI most commonly used in clinical practice include troponin I,troponin T,and creatine kinase isoenzyme (CK-MB).These enzymes are released only when cell death (infarction)or injury to the myocyte occurs.For investigation of acute MI,troponin assays have largely replaced creatine kinase (CK)and CK-MB determinations because these markers are more specific in differentiating cardiac muscle damage from trauma to skeletal muscle or other orgAnswer.

Which of the Following Is a Serum Enzyme Determination Used