blood creatine kinase activity assay serum creatine kinase activity assay 2022-02-24T16:48:26Z MMO:0000800 This is a method which quantifies the enzymatic activity of creatine kinase (CK) in a specified sample of serum, i.e. blood plasma from which clotting factors have been removed. CK catalyses the reversible transfer of phosphate between ATP and various phosphogens such as creatine phosphate. Serum CK level is used as an enzymatic marker for myocardial infarction, rhabdomyolysis and acute renal failure. measurement_method_ontology serum CK activity assay serum CPK activity assay serum creatine phosphokinase activity assay serum phosphocreatine kinase activity assay slaulede