Click here for more information about laboratory operations and procedures
If you have additional questions regarding this test, please call: 415-353-1667
|Container type||Red top (Gold top NOT acceptable)|
|Amount to Collect||2 mL blood|
|Preferred volume||1 mL serum|
|UCSF Rejection Criteria||Collected in Gold top|
|Processing notes||Refrigerate sample. Order Quest test #18865|
|Normal range||See Additional Information|
|Turn around times||7 days|
|Additional information||This test reports the active metabolite of Teriflunomide. Women who are being treated with Leflunomide and desire to become pregnant it is recommended that the plasma Teriflunomide levels be less than 20 ng/mL by two separate tests taken at least 14 days apart. Mean steady state trough plasma concentrations of Teriflunomide from patients on daily regimen of 5,10 or 25 mg of Leflunomide were 8,800 , 18,000 and 63,000 ng/mL respectively. The minimum effective concentration is reported to be 13,000 ng/mL.
This test was developed, validated and performed by National Medical Services Inc. 3701 Welsh Road, Willow Grove, PA. 19090 via Quest Nichols Diagnostics.
|Last Updated||10/28/2013 11:49:04 AM|