Casandra
Casandra Test Code QD83967Version 1 (DRAFT)
Performing Lab
Leflunomide Metabolite
Clinical Use
Order TestUse
Therapeutic monitoring of patients actively taking leflunomide (metabolite teriflunomide) and assessment of elimination in patients requiring enhanced elimination of the drug.
Special Instructions
Not provided.
Limitations
Not provided.
Test Details
Methodology
Mass Spectrometry
Biomarkers
Teriflunomide
AnalyteQuantitation
Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Result Turnaround Time
3-7 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Serum
Volume
1 mL serum
Minimum Volume
0.3 mL serum
Container
Red top (preferred); Serum gel also acceptable
Collection Instructions
Draw blood no sooner than 12 hours (trough) after last dose; centrifuge and aliquot serum into a plastic vial within 2 hours of collection.
Storage Instructions
Store and transport at room temperature preferred; refrigerated or frozen up to 14 days acceptable.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | up to 14 days |
| Refrigerated | up to 14 days |
| Frozen | up to 14 days |
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