LEFLUNOMIDE AS METABOLITE, SERUM/PLASMA

Specimen Required
Draw blood in a plain red-top tube. Centrifuge and separate serum from red cells, and send 1.0 mL serum (0.3 mL minimum) refrigerated in a screw-capped plastic vial.

Alternate Specimen
Plasma: lavender EDTA

Rejection Criteria
SST, PST

Methodology
High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)

Stability
Room temperature: 30 days; Refrigerated: 30 days; Frozen: 30 days

Reference Range
By report

Performed
Monday-Sunday

Turnaround Time7-10 days
Test CodeLEFL
CPT-4 Code (s)
80375 (80299)
LOINC Codes
44828-2

Warde
Medical
Laboratory