Coumadin (Warfarin) Level
Order Name
Coumadin
Test Number: 3606450
Revision Date 08/31/2023
Test Number: 3606450
Revision Date 08/31/2023
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Coumadin (Warfarin) Level
|
HPLC/Tandem Mass Spectrometry | 4098-0 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 1 mL (0.3 mL) | Serum | Clot Activator (Red Top, No-Gel) | Room Temperature |
| Alternate 1 | 1 mL (0.3 mL) | Plasma | EDTA (Lavender Top) | Room Temperature |
| Instructions | Specimen Type: Red-top tube,lavender-top (EDTA) tube DO NOT USE A GEL-BARRIER TUBE. The use of gel-barrier tubes is not recommended due to slow absorption of the drug by the gel. Specimen Collection: Promptly centrifuge and separate serum or plasma into a plastic screw capped vial using approved guidelines. Specimen Stability: Ambient: 30 days, Refrigerated : 30 days, Frozen: 15 months |
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| GENERAL INFORMATION | |
|---|---|
| Expected TAT | 3 - 4 days |
| CPT Code(s) | 80375 |
| Internal Comments | 12/5/16 - Added to RML Online - JLS 8/21/17 Moved to ARUP - JK 11/05/18 Updated TAT - SN 4/24/21 update TAT - JK 8/31/23 removed CPT change from 80299 to 80375 (Alt code: G0480) changed LCA code from 071423 to 832122 - JK |
| Service Provided By |  |
| Lab Section | Reference Lab |