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Test Code CK CK (Creatine Kinase), LAB62

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements

Container/Tube:

Preferred: Green-top (lithium heparin) tube

Acceptable: Gold-top serum gel tube, plain red-sop tube, or lavender-top (EDTA) tube

Specimen Volume: 0.1 mL of plasma or serum

Stability: Specimens should be analyzed immediately or kept at 2 – 8 °C and analyzed

                within 7 days. For longer storage, samples may be frozen at -20 °C for up to 29 days.

Reference Values

Males: 39-308 U/L

Females: 26-192 U/L

Useful For

The determination of CK and CK-isoenzyme activities is utilized in the diagnosis and monitoring of myocardial infarction and myopathies such as the progressive Duchenne muscular dystrophy.

Day(s) Test Set Up

Monday through Sunday

Methodology

Rate Reaction

Test Classification and CPT Coding

82550