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Laboratory Test Directory

Gabapentin

Components

Name Method Department Units
Gabapentin Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Send Out ug/mL

Specimen Requirements

Plasma Spun, Serum Spun

Container Type Container Size Specimen Volume
Preferred

Red tube, (no anticoagulant), No Gel

3 mL 1 mL
Alternate

Purple tube (EDTA)

3 mL 1 mL
Stability

Frozen - 2 month(s)
Room temperature - 1 month(s)
Refrigerated - 1 month(s)

Specimen Preparation

  • Centrifuge within 2 hours, separate supernatant and refrigerate

Reasons for Rejection

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

Comments

Timing of specimen collection: Pre-dose (trough) draw - At steady state concentration.

CPT Code

  • 80171