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Regional Medical Lab
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Index:

Creatine Phosphokinase

Order Name CPK
Test Number: 2001950
Revision Date 05/03/2021
Test Name Methodology LOINC Code
Creatine Phosphokinase
Enzymatic 2157-6 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1mL (0.5mL) Plasma Lithium Heparin PST (Light Green Top) Refrigerated
Alternate 1 1mL (0.5mL) Serum Clot Activator SST Refrigerated
Instructions Stability: Ambient 2 days, Refrigerated 7 days, Frozen 1 month
GENERAL INFORMATION
Testing Schedule Daily 
Expected TAT 1-2 days  
Clinical Use A diagnostic test in the work-up of suspected Duchenne patients and other myopathies. 
CPT Code(s) 82550
Lab Section Chemistry