For biochemical diagnostics of myocardial infarction it is necessary to measure activity of a number of enzymes and their isoenzymes. What enzymatic test is considered to be the best to prove or disprove the diagnosis of infarction in the early period after the chest pain is detected?

Answer options

1. Aspartate aminotransferase cytoplasmic isoenzyme
2. Creatine kinase isoenzyme CK-MB
3. Creatine kinase isoenzyme CK-MM
4. LDH2 lactate dehydrogenase isoenzyme
5. LDH1 lactate dehydrogenase isoenzyme

Explanation

Creatine kinase (CK) is an enzyme found in your muscles. CK-MB, found in the heart and rises when the heart muscle is damaged. while CK-MM, found in your skeletal muscle and heart. LDH 1 and 2 are found in the heart only.