Medtox
Synonyms
XCOPRI®
Expected Turnaround Time
5 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Related Information
In-house validated method
Specimen Requirements
Specimen
Plasma (EDTA)
Volume
2.0 mL
Minimum Volume
0.5 mL
Container
Lavender-top (EDTA) tube
Collection
Transfer separated plasma to a plastic transport tube.
Storage Instructions
Submission/transport (<3 days): Room temperature. For storage beyond three days, specimen should be refrigerated or frozen.
Causes for Rejection
Any sample type other than EDTA Plasma
Test Details
Use
Therapeutic drug management
Methodology
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
Reference Interval
Although the therapeutic range is not well established, the suggested range at doses of 100 - 400 mg/day is 5 - 35 ug/mL. Toxic range has not been established.