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
Cardiac enzymes are 
Select and explain. 
A. CPK, B. LDH, C. SGOT, D. ALK. Phosphatase
A: CPK
Answer: A: CPK 
Explanation: These tests can measure blood levels of the enzyme creatine phosphokinase (CPK), also called creatine kinase (CK), and a more specific form of this enzyme called CK-MB. Additionally, cardiac enzyme tests can be used to check the blood levels of the proteins myoglobin and troponin.