Your body produces the enzyme creatine kinase (CK) or creatine phosphokinase to keep your muscles functioning properly.

A creatine kinase test is a blood test that measures levels of an enzyme called creatine kinase. This enzyme supports energy ...

Your doctor may recommend the creatine phosphokinase (CPK) test if there's a need to measure CPK enzyme levels in your blood. The cells in your body require this creatine kinase enzyme to generate ...