- YWFNS
Warfarin, Serum
Specimen:
Test Code
YWFNS
Specimen Name
Warfarin, Serum
Collect
1-Plain Red Top
Also acceptable K2EDTA, K3EDTA
Also acceptable K2EDTA, K3EDTA
Submit
1 mL (Min: 0.2 mL) Serum or Plasma Refrigerated
Special Handling
Separate from cells ASAP or within 2 hours of collection. Transfer serum or plasma to a Transport Tube. Separate specimens must be submitted when multiple tests are ordered.
Rejection Criteria
Polymer gel separation tube (SST or PST).
Stability
Ambient: 1 month; Refrigerated: 1 month; Frozen: 15 months
Methodology
Quantitative High Performance Liquid Chromatography-Tandem Mass Spectrometry
Performed
Varies
Reported
8-12 days
CPT Codes
- 80375
Components
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Additional Information
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Common Lab Definitions
- Serum
- Plasma
- STT