| Methodology: |
Chemiluminescent Immunoassay
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| Performed: |
Sun-Sat
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| Reported: |
Within 24 hours
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| Specimen Required: |
Collect: One 3 mL green (sodium or lithium heparin), plasma separator tube, or 4 mL serum separator tube.
Transport: 2 mL plasma or serum, frozen. (Min: 0.5 mL) Submit specimen in an ARUP Standard Transport Tube.
Pediatric Collection/Transport: 0.5 mL plasma or serum, frozen.
Remarks: SST needs to sit for 15-20 minutes for proper clot formation and to assure the absence of fibrin in the serum which can interfere with this assay. Centrifuge and remove from cells ASAP. Specimens must be free of all particulate matter which can interfere with the assay. If testing cannot be performed within 48 hours from collection, ship frozen. CK-MB is quite labile. CK-MB relative percent will be calculated only if Creatine Kinase, Total, Serum or Plasma (0020010) is ordered.
Unacceptable Conditions: Specimens exposed to repeated freeze/thaw cycles.
Stability: After separation from cells: Ambient: 8 hours; Refrigerated: 2 days; Frozen: 6 months
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