CK, Total and CKMB




Test Mnemonic

CKCKMB

CPT Codes

  • 82550 - QTY (1)
  • 82553 - QTY (1)

Aliases

  • Creatine Kinase, Total and MB

Includes

  • CK-MB
  • %CKMB
  • Creatine Kinase

Performing Laboratory

Cleveland Clinic Laboratories


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLPlasmaLithium heparin PST (Lt. Green) Centrifuge and refrigerate.Submit in original tube or aliquot into CCL aliquot tube

Alternate Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLSerumSST (Gold) Centrifuge and refrigerate. 

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.5 mL     

Stability

Environmental Condition Description
Ambient5 hours
Refrigerated12 hours
Frozen4 weeks

Days Performed

Sun - Sat

Turnaround Time

8 hours

Methodology

Name Description
Electro Chemiluminescence Immunoassay (ECLIA) 
Enzymatic 

Reference Range

CK
Sex Age From Age To Type Range Range Unit
Male      Normal51 - 298U/L
Female      Normal42 - 196U/L
CK MB%
Sex Age From Age To Type Range Range Unit
       Normal0.0 - 4.0%
       Urgent>4.0%
CK-MB
Sex Age From Age To Type Range Range Unit
Male      Normal<7.8ng/mL
Female      Normal<4.4ng/mL

Special Info

Patients taking a biotin dose of up to 5 mg/day should refrain from taking biotin for 4 hours prior to sample collection. Patients taking a biotin dose of 5 to 10 mg/day should refrain from taking biotin for 8 hours prior to sample collection. Patients taking a biotin dose > 10 mg/day should consult with their physician or the laboratory prior to having a sample taken. Clinicians should consider biotin interference as a source of error, when clinically suspicious of the laboratory result.

Clinical Info

Evaluation of ischemic cardiac syndrome