Test directory: Gabapentin

Ordering Code 4993
Test Name Gabapentin
Alias Neurontin
Preferred Specimen Plasma
Preferred Container EDTA, K2 (Lavender)
No gel barrier tubes.
Other Specimen/Container Plasma in Lithium Heparin (Green), Plasma in Sodium Heparin (Green), Serum in Plain (Red)
Optimum Volume 2 mL
Collection Instructions Do Not use SST or PST
Draw sample two hours after last dose at steady state.
Handling Instructions Centrifuge & aliquot specimen immediately
Transport Requirements Oahu: Refrigerated
Airline: Refrigerated
Specimen Stability Ambient: 5 Days
Refrigerated: 12 Days
Frozen: 1 Month
Rejection Criteria Gel barrier tube, Grossly hemolyzed, Serum separator tube
Avail. Stat NO
Analytic Time Up to 7 Days
Methodology Liquid Chromatography Tandem Mass Spectrometry (LC/MS/MS)
Reference Lab  Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of June 29, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
Gabapentin ALL See report.