Test Code CK Creatine Kinase (CK)

Specimen Required

Lithium Heparin Plasma Separator Tube (GREEN) or

Serum Separator Tube SST (YELLOW)

Handle and store specimens in stoppered containers to avoid contamination and evaporation.

CK is unstable in serum. Centrifuge specimens to remove the plasma/serum from the cellular material within 4 hours of collection.

Specimen Stability

* Room Temperature: 4 hours

* Refrigerated: 5 days

* Frozen: 30 days

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