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HelpTest Code LAB306 FACTOR 8 ASSAY
Method
Photo Optical Clot Detection
CPT Code(s)
| Description | CPT Code |
| Factor 8 Assay | 85240 |
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 | 50 - 178 | % |
| 1 day up to 5 days | 50 - 154 | % |
| 5 days up to 1 month | 50 - 157 | % |
| 1 month up to 3 months | 50 - 150 | % |
| 3 months up to 6 months | 50 - 109 | % |
| 6 months up to 1 year | 50 - 150 | % |
| 1 year up to Unspecified | 50 - 150 | % |
Instrumentation
ACL Top
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