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Laboratory Test Directory

Oxcarbazepine or Eslicarbazepine Metabolite (MHD)


Name Method Department Units
Eslicarb Metabolite (MHD) Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Send Out ug/mL

Specimen Requirements

Serum Spun, Plasma Spun

Container Type Container Size Specimen Volume

Red tube, (no anticoagulant), No Gel

3 mL 1 mL

Purple tube (EDTA)

3 mL 1 mL

Refrigerated - 6 week(s)
Room temperature - 6 week(s)
Frozen - 3 month(s)

Specimen Preparation

  • Avoid repeated freeze/thaw cycles
  • Centrifuge within 2 hours, separate supernatant and refrigerate

Reasons for Rejection

  • Collected in tube with gel separator
  • Wrong collection tube
  • Not centrifuged within time frame


Specimen collection shoud be Pre-dose (trough) draw - at a steady state concentration.

CPT Code

  • 80183