Gabitril 
Mnemonic GABITRIL
CPT 80199
Test Code 3507788
Synonyms Tiagabine
Test Includes  
Specimen Serum
Volume 3.0 mL
Container Red Top Tube. Do NOT use SSTs.
Special Instructions  
Specimen Prep Centrifuge* For Red Top only, transfer to a Plastic Transport Tube.
Storage Refrigerate
Transport Temp Refrigerated
Stability Rm Temp 72 hours
Stability Refrig 14 days
Stability Frozen 3 months
Methodology Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Rejection Criteria   
Reference Value Therapeutic and toxic ranges have not been established. Reporting limit: 5.0 ng/mL; Reference Range: <235.0 ng/ml 
Performed/TAT One time per week   Reported in 5-7 days    
Comments Trough levels are most reproducible. Submission of the minimum volume results in an elevated reporting limit.