LEFLU
Leflunomide
EPIC Test Procedure Code: LAB3358
Synonyms:
Arava
Leflunomide Metabolite
A77 1726
Performing Lab:
Referral Laboratory
Container Type:
Plain red top tube
Specimen Type:
Serum
Preferred Volume:
1 mL
Minimum Volume:
0.5 mL
Specimen Processing:
The serum must be separated from the cells within 45 minutes of collection and transferred to a plastic transport tube.
Store and Transport:
Frozen
Stability:
Frozen - 6 months
Refrigerated - unstable
Room temperature - unstable
Unacceptable Condition:
1. Gel tubes are NOT acceptable.
2. Samples that are received at testing laboratory that are not frozen will be rejected.
CPT Codes:
80193 - Leflunomide Metabolite Arava (EAP 30021031)
(If billing Medicare, use G0480)
Method:
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS-MS)
Notes:
To avoid delays in turn around time when requesting multiple tests on frozen specimens, submit separate frozen specimens for each test requested.