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Coagulation Factor X Activity Assay

Test Code
F10


Alias/See Also
Factor X


Preferred Specimen
1 mL platelet poor sodium citrate plasma


Minimum Volume
0.5 mL


Instructions
Submission of platelet poor plasma is critical to accurate results. Contact laboratory for further information.


Transport Container
Plastic vial


Transport Temperature
Frozen


Specimen Stability
Frozen 14 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis, gross lipemia, gross icterus


Report Available
2-4 days


Reference Range
Adults: 70-150%


Clinical Significance
Factor X is a vitamin K-dependent serine protease that is synthesized in the liver. Its biological half-life is 24 to 48 hours. Factor X participates in both intrinsic and extrinsic pathways of coagulation (final common pathway) by serving as the enzyme (factor Xa) in the prothrombinase complex.




The CPT Codes provided in this document 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. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.