Creatine Kinase-MB (Mass), serum | KK Women's and Children's Hospital

Specimen Container	Gel separator tube (Adult) Microtube (Paeds)
Specimen Requirement	Plain Blood Adult: 3 mL Paediatric: 1.3 mL Invert blood 5 times after blood collection ensures the clot-activating factors is well mixed with the blood. This will ensure results are reliable.
Orderable as Urgent?	Yes
Turn Around Time	Up to 2 hrs
Reference Value(s)	Females 18yr old and above: <=3.1 ug/L Males 18yr old and above: <=5.2 ug/L Reference limits for paediatric populations are currently unavailable.
Testing Laboratory Location	KKH
Laboratory	Clinical Chemistry
Contact Number	6394 1383
Day and Time Performed	Daily, 24 hrs
Orderable on CPOE?	Yes
Downtime Form	Clinical Chemistry - Form A
Additional Information	Immunoassay measurements can be subject to interference from cross-reacting subtances in the patient's blood. If the result does not agree with the clinical picture, please contact the laboratory for further action.

Change History Notes

27 May 2024 08:00 AM

Update of Specimen Requirement.
19 Oct 2021 02:55 PM

Updated Specimen Requirement, Turn Around Time and Additional Information.

Last Updated - 19 Jun 2025