Leflunomide Metabolite, Serum or Plasma
| CPT Code(s): | 80299 |
| Specimen Required: | Patient Preparation:Timing of specimen collection: Predose (trough). Obtain specimen 12 - 24 hours after last dose. Collect:Plain red. Also acceptable: Lavender (EDTA), pink (K2EDTA), green (sodium heparin), or gray (sodium fluoride). Specimen Preparation:Separate from cells within 2 hours of draw. Transfer 1 mL serum or plasma to an RDL Standard Transport Tube. (Min: 0.2 mL) Storage/Transport Temperature:Refrigerated. Also acceptable: Room temperature or frozen. Stability:Ambient: 7 days; Refrigerated: 17 days; Frozen: 90 days |
| New York DOH Approval Status: | This test is New York DOH approved. |
| Aliases: |
