This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Enzymes, Subject name: Biochemistry
Serum enzyme used for MI 
Select and explain. 
A. CK, B. Alkaline phophatase, C. Acid phosphatase, D. Lipase
A: CK
Answer: A: CK 
Explanation: The enzymes routinely measured in the clinical laboratory for the purpose of diagnosing and monitoring myocardial infarction include creatine kinase (CK), aspaate aminotransferase (sGOT or AST), and lactate dehydrogenase (LDH).