A creatine kinase test is a blood test that measures levels of an enzyme called creatine kinase. This enzyme supports energy production in the body and is particularly important for muscle and brain ...

CPK is an enzyme found mainly in the muscles, but is also present in the heart and brain. In general terms, when CPK levels are found to be substantially and persistently elevated (as in this patient) ...

DALLAS, Aug. 20 – A test commonly used to diagnose heart attacks may also identify patients at increased risk of death after balloon angioplasty, according to a study in today's rapid access issue of ...