Coumadin
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Warfarin, Serum/Plasma
Test ID: WARFA SP
Test
Aliases/Synonyms
Method
HPLC-MS/MS
Report Includes
Warfarin
Specimens
Avoid gel-separator tubes; Serum; Plasma
Test Location
Quest Diagnostics, California USA
Test Version
4-Oct-2022
Specimen
Specimens
Avoid gel-separator tubes; Serum; Plasma
Collection Containers
Preferred
No Additive (Red Top)
Acceptable
EDTA (Lavender-Top)
Sample Volume
1 mL
Minimum Volume
0.2 mL
Specimen Comment
Avoid gel-separator tubes.
Collection & Handling
Handling Information
Store and send cold or frozen.
Stability
| Ambient | 30 days |
|---|---|
| Refrigerated | 30 days |
| Frozen | 15 months |
Rejection Criteria
| Specimen | Gel tube |
|---|
Test Version
4-Oct-2022
Performance / Interpretation
Method
HPLC-MS/MS
Turnaround Time
12 days
Results
| Name | Units | Reference Range | Conversion Factor | |
|---|---|---|---|---|
| Warfarin | mcg/mL |
|
Reporting Limit: 0.2 mcg/mL. The reported value may vary based on dilution or weight of the specimen. | |
Test Location
Quest Diagnostics, California USA
Test Version
4-Oct-2022
Interface / Setup
HL7 Interface Codes
| Order Code | Result Codes | Units |
|---|---|---|
| WARFA SP | 64653WARFARIN, SERUM/PLASMA | mcg/mL |
Test Version
4-Oct-2022