Your body produces the enzyme creatine kinase (CK) or creatine phosphokinase to keep your muscles functioning properly. Healthcare providers use the CK test to check levels of this protein in your ...

Myopathy was defined by muscle weakness, elevated creatine kinase (CK) levels, myopathic EMG findings, muscle edema on MRI, and/or features of myopathy on muscle biopsy. The researchers identified ...