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Gabapentin
0090057
Ordering Recommendation
Optimize drug therapy and monitor patient adherence.
Mnemonic
GABAP
Methodology
Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Performed
Tue-Sat
Reported
1-4 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
Timing of specimen collection: Pre-dose (trough) draw - At steady state concentration.  
Collect
Plain red. Also acceptable: Lavender (K2 or K3EDTA) or pink (K2EDTA).  
Specimen Preparation
Separate serum or plasma from cells within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.2 mL)  
Storage/Transport Temperature
Refrigerated.  
Unacceptable Conditions
Whole blood. Gel separator tubes, light blue (citrate), or yellow (SPS or ACD solution).  
Remarks
 
Stability
After separation from cells: Ambient: 1 month; Refrigerated: 1 month; Frozen: 2 months  
Reference Interval
Effective November 18, 2013
Therapeutic Range2-20 µg/mL
ToxicNot well established

Interpretive Data
Pharmacokinetics of gabapentin vary widely among patients, particularly those with compromised renal function. Adverse effects may include somnolence, dizziness, ataxia, and fatigue.


Note
CPT Code(s)
80171
Components
Component Test Code*Component Chart NameLOINC
0090057Gabapentin9738-6
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Gabapentin, Free
  • Gabarone
  • Neurontin