Teriflunomide

Leflunomide Metabolite

13 days

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

Accredited Laboratory Partner

Contact Technical Support

Measures the active metabolite (teriflunomide) of leflunomide. Monitors therapeutic levels and potential toxicity in patients with rheumatoid arthritis.

Serum or Plasma

1 mL

Red-Top Tube or Lavender-top (EDTA) tube

No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.

Serum/Plasma must be separated from cells within 45 minutes of collection and transferred to a plastic transport tube.