Mephenytoin and Metabolite
Mesantoin, Nivarnol, ARUP #91110, EPIC: LAB6095, SOFT: XMEPH
Specimen Collection Criteria
Collect (preferred specimen): One plain Red-top tube.
Also acceptable: One Lavender-top EDTA tube or Dark Green-top Sodium Heparin tube.
Do not use Serum Separator Tubes.
Time of Collection: Trough, just prior to the next dose.
Physician Office/Drawsite Specimen Preparation
Centrifuge to separate serum or plasma from cells. Transfer serum or plasma to a plastic transport tube and refrigerate (2-8°C or 36-46°F).
Preparation for Courier Transport
Transport: 2.0 mL serum or plasma, refrigerated (2-8°C or 36-46°F). (Min: 0.7 mL)
- Serum Separator (SST) tubes.
- Specimens not collected and processed as indicated.
Specimen Stability for Testing:
Room Temperature (20-26°C or 68-78.8°F): 14 days
Refrigerated (2-8°C or 36-46°F): 14 days
Frozen (-20°C/-4°F or below): 13 months
Specimen Storage in Department Prior to Disposal:
Specimen retention time is determined by the policy of the reference laboratory. Contact the Sendout Laboratory with any questions.
Sent to ARUP Laboratories, Salt Lake City, UT, forwarded to National Medical Services (NMS), Willow Grove, PA.
Results available in 4-11 days.
Quantitative High Performance Liquid Chromatography.
Mephenytoin is used for the control of grand mal, focal, Jacksonian, and psycho-motor seizures in those patients who have been refractory to less toxic anticonvulsants. This assay is used to monitor the therapeutic drug level and to evaluate the toxicity of mephenytoin.
80339 (alternate code: G0480).
ARUP #91110, EPIC: LAB6095, SOFT: XMEPH
Microtainer® and Vacutainer® are registered trademarks of Becton, Dickinson and Company.
UroVysion® is a registered trademark of Abbott Laboratories. ThinPrep® is a registered trademark of Hologic, Incorporated.
This directory currently reflects information only for specimens collected and/or processed at the Farmington Hills,
Grosse Pointe, Royal Oak, and Troy campuses.