Vigabatrin (Sabril®), Serum/Plasma

gamma-vinyl GABA, Sabril^®

Test Codes

EPIC: LAB1232221, Beaker: VIGABATRIN, Quest: 19718

Department

Send Outs

Specimen Collection Criteria

Collect (preferred specimen): One plain Red-top tube.
Also acceptable: One Lavender-top EDTA tube.

Do not use Serum Separator Tubes or Plasma Separator Tubes.

Physician Office/Draw Specimen Preparation

Centrifuge to separate serum or plasma from cells. Transfer serum or plasma to a plastic transport tube and refrigerate (2-8°C or 36-46°F).

Preparation for Courier Transport

Transport: 1.0 mL serum or plasma, refrigerated (2-8°C or 36-46°F). (Minimum: 0.3 mL)

Rejection Criteria

• Serum Separator (SST) tubes.
• Plasma Separator tubes.
• Specimens not collected and processed as indicated.

In-Lab Processing

Centrifuge to separate serum or plasma from cells. Transfer serum or plasma to a plastic transport tube and refrigerate (2-8°C or 36-46°F).

Transport: 1.0 mL serum or plasma, refrigerated (2-8°C or 36-46°F). (Minimum: 0.3 mL)

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 30 days
Refrigerated (2-8°C or 36-46°F): 30 days
Frozen (-20°C/-4°F or below): 2 years

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Send Outs Laboratory with any questions.

Laboratory

Sent to Quest Diagnostics, Wood Dale, IL, forwarded to National Medical Services (NMS), Willow Grove, PA.

Performed

Varies.
Results available in 8-10 days.

Reference Range

By report.

Test Methodology

Liquid Chromatography-Tandem Mass Spectrometry (LC/MS/MS)

Interpretation

By report.

Clinical Utility

Vigabatrin is an anticonvulsant. This assay is used for the therapeutic monitoring and toxicity assessment of vigabatrin.

CPT Codes

80299

Contacts

Last Updated

8/7/2026