CK-MB Index

Supply # 38435 Lithium Heparin Vacutainer

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

Collection Guide: 

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.