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 ...

A creatine kinase (CK) test measures the levels of the enzyme in your blood. If you have high CK levels, this can be a sign of damage to the muscles, heart, or brain. A doctor may order a CK test if ...