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Immunoassay reagents intended to perform qualitative and/or quantitative analyses of a sample of serum or plasma to determine the creatine kinase isoenzyme MB (i.e., muscle-brain isoenzyme, CKMB) level. This isoenzyme is mostly found in cardiac muscle. The level of CKMB is used in the diagnosis of heart damage as the result of myocardial infarction, pericarditis, or myocardial ischemia and also after cardiac surgery.
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