Oxcarbazepine Metabolite

Test Code: TD_5259

CPT Code(s): 80183

$49

Test Details

Alternative Name(s)

10-hydroxycarbazepine
Aptiom
Trileptal

Test Includes

Oxcarbazepine Metabolite

Methodology

Liquid chromatography/tandem mass spectrometry (LC-MS/MS

Rejection Criteria

Samples collected in serum separator tube

Reference Range(s)

10.0-35.0 mcg/mL

Specimen Requirements

Preferred Specimen

Plain Red Top Tube

Minimum Volume

0.2 mL serum or plasma

Sample Stability

3 days room temperature
10 days refrigerated
1 month frozen

Transport Temperature

Refrigerated

Collection Instructions

Ideal sampling time for all antiepileptic drugs is
immediately before the next oral dose (trough). If this is
not possible, patients should not be advised to delay their
scheduled dose for longer than 2-3 hours. Sample collection
and the time that the medication was last ingested should be
noted on the requisition.

Alternative Specimen

1 mL EDTA (lavender top) or sodium fluoride/potassium oxalate (gray top) plasma. Centrifuge sample and separate plasma from cells immediately. Transfer plasma to a plastic transport tube. Clearly label tube as EDTA or fluoride plasma. Refrigerate