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HelpTest Code FWARP Warfarin, Plasma
Specimen Required
**Must submit one specimen per order. Specimens cannot be shared between multiple orders.***
Collection Container/Tube: EDTA (lavender top) or pink top
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions:
1. Draw blood in EDTA (lavender top) or pink top tube(s). Plasma gel tube is not acceptable.
2. Centrifuge and send 1 mL of plasma refrigerate in preservative-free plastic vial.
Method Name
High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Reporting Name
Warfarin, PlasmaSpecimen Type
Plasma EDTASpecimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Plasma EDTA | Refrigerated (preferred) | 30 days | |
| Ambient | 30 days | ||
| Frozen | |||
Reject Due To
| Other | Polymer gel separation tube (SST or PST) |
Reference Values
Reporting limit determined each analysis.
None Detected mcg/mL
Day(s) Performed
Monday-Sunday
Report Available
9 to 11 daysCPT Code Information
80375
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| FWARP | Warfarin, Plasma | 4098-0 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| Z5526 | Warfarin | 4098-0 |