Creatine Kinase (CK)

CPT Code

82550

Specimen Type

Blood

Container Type

Serum Separator Tube (SST)/Yellow

Stability

Room Temperature, 2 days; 2-8°C, 7 days

Handling Instructions

Allow to clot for 30 mins, centrifuge within 2 hours

Clinical Notes

Creatine kinase (CK) is an enzyme found in the heart, brain, skeletal muscle, and other tissues. Increased amounts of CK are released into the blood when there is muscle damage. The small amount of CK that is normally in the blood comes primarily from skeletal muscles. Any condition that causes muscle damage and/or interferes with muscle energy production or use can cause an increase in CK.