Test Code LAB62 Creatine Kinase (CK), Total, Plasma

Performing Laboratory

Barnes-Jewish Hospital Laboratory

Methodology

Enzymatic (NADH)

Literature Reference:

Package insert: CK reagent kit. Roche Diagnostics, 05/2016.

Specimen Requirements

Specimen Type: Plasma

Container/Tube: Mint-green top (lithium heparin)

Specimen Volume: Full tube

Day(s) Test Set Up

Monday through Sunday
Turnaround Time:
STAT: 1 hour after receipt in laboratory
Routine: 2 to 4 hours after receipt in laboratory

Test Classification and CPT Coding

82550

Reference Values

Males:

< 18 years: 0-300 Units/L

>/= 18 years: 40-300 Units/L

Females:

< 18 years: 0-300 Units/L

>/= 18 years: 30-200 Units/L

Critical result (automatic call back): ≥10,000 Units/L

Literature References:

1. Doumas B, et al: Clin Chem 1989;35:151-3.

2. Rifai N, Horvath AR, Wittwer AT eds: Textbook of Clinical Chemistry and Molecular Diagnostics 6th ed: Chapter 29, p. 404, Elsevier, St. Louis, MO 2018.

Specimen Transport Temperature

Ambient

Additional Information

For BJH Laboratory Use Only
Alternate Tube:

1 dark green-top (lithium heparin) tube
1 red-top tube

Laboratory Processing Instructions:

Test performed in BJH Core Lab. Processed by automated line for delivery to the Cobas 8000. Completed specimens are stored refrigerated for 5 days.

Test performed in South County Siteman and Ambulatory Cancer Building Lab. Centrifuge sample and deliver to the Cobas. Completed specimens are stored refrigerated for 5 days.

Special Instructions