CK-MB IndexMain Content
Test Code: 59221
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: T35 - Green Lithium Heparin Vacutainer 4.5mL
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.