The cardiac muscle can also produce some ATP from creatine p…

The cardiac muscle can also produce some ATP from creatine phosphate using enzyme creatine kinase (CK).  When disruption of muscle cell membranes due to hypoxia (or other injury) will releases CK from the cell into the blood stream. On this basis, elevated blood CK have been used as a sensitive but nonspecific test for heart tissue damage like __________.