CPK - Definition

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"CPK" stands for "creatine phosphokinase", also called "creatine kinase," one of the enzymes most used by the human body. It is used only in muscle cells. Among the many forms of CPK, there are the three most important: CPK-MB, used by the heart, the CPK-MM, used by the different muscles of the body, and CPK-BB, for the brain cells. Levels of CPK only appear in the blood in cases of muscle damage or a lesion of the heart muscle.