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Test Code LAB310 FACTOR 12 ASSAY

Specimen Information

Container Specimen Temperature Collect Vol Submit Vol Min Vol Stability
Blue Top Tube Plasma Frozen To fill line 2 mL plasma 1 mL plasma 6 Months
Blue Top tube Whole Blood Ambient To fill line To fill line To fill line 4 Hours

Refer  to Coagulation Specimen Handling before collecting. Submit 2 × 0.5 mL frozen plasma aliquots for this test. Draw blood in light blue top tube(s). Spin down, remove plasma, spin plasma again, and place citrate platelet-poor plasma in required number of plastic vials (Glass vials cannot be accepted.)  Freeze specimen at less than or equal to minus 40° C, if possible. Send specimen frozen on dry ice. 

Reference Range

Age Reference Range Units
0 up to 1 day 13 - 93 %
1 day up to 5 days 11 - 83 %
5 days up to 1 month 17 - 81 %
1 month up to 3 months 25 - 109 %
3 months up to 6 months 39 - 115 %
6 months up to 1 year 50 - 150 %
1 year up to Unspecified 50 - 150 %

 

Method

Photo Optical Clot Detection

Instrumentation

ACL Top 

CPT(s)

Description CPT Code
Factor 12 Assay 85280

 

Performing Location

University of Vermont Medical Center

Test Schedule / Analytical Time / Test Priority

Monday – Friday / 1 day / Available STAT, nights and weekends with pathologist approval

Section

Coagulation

Is the UVMMC lab NY State Certified to perform this testing?  Yes/No

Yes