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Test Code CPK Creatine Kinase (CK), Plasma

Methodology

Kinetic

Performing Laboratory

St. Clair Hospital Laboratory

Specimen Requirements

1 mL of Lithium Heparin plasma

  • Preferred Specimen:  Light Green Plasma Seperator Tube (PST) 
  • Acceptable Specimen: Dark Green Lithium Heparin tube

Centrifuge blood as soon as possible, or send unspun blood to laboratory within 4 hours of draw. Avoid hemolysis. 
Note:  Do not uncap tube once specimen is drawn.

Reference Values

Males:  39-308 U/L
Females:  26-192 U/L
Note:  Strenuous exercise or intramuscular injections may cause transient elevation of CK.

Day(s) Test Set Up

Monday through Sunday