Last Modified: 3/25/2019 4:13:13 PM

Medical Necessity Documentation:  
Client Notes:  
Patient Preparation:  
Specimen Requirements: 1.0 mL Serum from a Red Top Tube in a Plastic Vial
Collection Instructions:
Minimum Volume: 0.5 mL Serum
Transport & Storage: Temperature/Stability: 5 days Ambient (transport)
12 days Refirgerated
1 month Frozen
Rejection Criteria: Serum Separator Tube (SST or PST)
Reference Range:

2.7 - 4.1 mcg/mL (peak) following a single dose of 900-1800 mg/day.

4.0 - 8.5 mcg/mL (peak) following a mulitple dose of 900-1800 mg/day administration.

Critical Ranges:  
Test Comments:

The reference range is evolving. Seizure control has been observed at levels in excess of 4 mcg/mL.

Methodology: Mass Spectrometry
Clinical Significance:

Gabatin is an anticonvulsant drug commonly used as adjunctive therapy to treat partial seizures. Therapeutic drug monitoring is useful to optimize dose and avoid toxicity.

Custom Panel: No


Turn Around Time: 3 to 5 days
Days Performed: Monday, Tuesday, Wednesday, Thursday, Friday
Sites Performed: Quest - Valencia
PHL Test Code: GABP
EPIC Test Code: LAB470
Send Out Test Code: 3557
Alternate Test Names: Neurontin
Included Tests:  
CPT Coding: 80171

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