?:definition
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Immunoassay reagents intended to perform qualitative and/or quantitative analyses on a body fluid sample (usually whole blood) in a short period of time, typically several minutes, to determine the presence and/or level of creatine kinase isoenzyme MB (i.e., muscle-brain isoenzyme). The level of MB isoenzyme is used in the diagnosis of heart damage, the result of myocardial infarction, pericarditis, myocardial ischemia, and after cardiac surgery.
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