- YFAXI
Factor XI Assay (Activity)
Specimen:
Test Code
YFAXI
Specimen Name
Factor XI Assay (Activity)
Collect
2-Blue Top (Na-Citrate)
Submit
2 mLs (Min: 1 mL) Plasma CRITICAL FROZEN
Special Handling
Transfer 2 mLs platelet-poor plasma to a standard transport tube.
Rejection Criteria
Serum. EDTA plasma, clotted or hemolyzed specimens.
Stability
Ambient 4 hours; Refrigerated Unacceptable; Frozen 2 weeks
Methodology
Electromagnetic Mechanical Clot Detection
Performed
Monday - Saturday
Reported
3-5 days
CPT Codes
- 85270
Components
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Additional Information
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Common Lab Definitions
- Serum
- Plasma
- STT