CK-MB IndexMain Content
Test Code: 59221
CPT Code(s): 82550, 82553
Methodology: N-acetyl-L-cysteine (NAC) and Immunoassay followed by ratio determination
Includes: Creatine Kinase total, CK-MB, CK-MB Index
Clinical Significance: CK-MB is normally undetectable or very low in the blood. If CK-MB is elevated and the ratio of CK-MB to total CK (relative index) is more than 2.5-3, then it is likely that the heart was damaged. A high CK with a relative index below this value suggests that skeletal muscles were damaged.
Alternative Name(s): Not applicable
Supply: 38435 Lithium Heparin Vacutainer
Preferred Specimen: Plasma
Preferred Volume: 2mL - separated from cells within 2 hours of collection
Transport Container: Lithium Heparin Vacutainer
Transport Temperature: Refrigerated
Specimen Stability: Refrigerated: 48 hours
SPECIAL INSTRUCTIONS: SEPARATE PLASMA FROM CELLS WITHIN 2 HOURS OF COLLECTION. IF TEST WILL NOT BE PERFORMED WITHIN 48 HOURS SPECIMEN SHOULD BE FROZEN
Rejection Criteria: Hemolysis, Lipemia, Specimens that are thawed and over 48 hours old.
For additional supply or collection device information, please contact DLO's Customer Service at (800) 891-2917, option 2.
The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the Payor being billed.