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Creatine kinase - MB fraction

Item Value
Test Update Information Effective 02/27/2013, the platform used for the CKMB assay has changed from the Abbott Axsym to the Beckman UniCel DxI 600. This assay change has little or no effect on the assay results.
Approval req'd? No
Available Stat? Yes
Utilization Guidelines This test has been virtually replaced clinically with the Troponin I test and should not be ordered except in unusual circumstances.
Test code MBMU
Performed by Parnassus & Mission Bay Chemistry
In House Availability Test available 24 hours per day 7 days per week
Method Immunochemiluminometric assay (Beckman DxI600)
Container type Light Green top, Gold top
Amount to Collect 2 mL blood
Sample type Plasma, Serum
Preferred volume 1 mL serum or plasma
Min. Volume 0.5 mL serum or plasma
Units µg/L
Normal range 0.6 - 6.3 µg/L
Synonyms Creatine kinase muscle/brain; Creatine kinase cardiac specific; CKi; CK isoenzymes; MB; Creatine phosphokinase; CKMB; CK-MB; CK MB
Stability Room temperature 8 hours, refrigerated 48 hours, frozen -20C 6 months
Turn around times STAT 1 hour, Routine 4 hours
Additional information Order CK, Total separately, if desired.

Reference ranges were adopted from Beckman and verified in 226 adult blood donors.
CPT coding 82553
LOINC code 13969-1
Last Updated 6/22/2016 12:54:55
Entry Number 217
Lab Procedure Link Click here for Procedure
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