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Tiagabine-5513A

Test info

Test name:

Tiagabine

Test number:

5513A

Excellian order number:

LAB5513

Abbreviation:

TIA

Alternate names:

Gabitril®

Specimen

Specimen type:

Serum

Collection container:

Red serum vial/tube, 5 mL

Volume:

3.0 mL

Minimum volume:

0.6 mL

Collection instructions:

Trough levels are most reproducible

Processing instructions:

Allow sample to clot
Spin within two (2) hours of sample collection
Transfer serum to a Serum/plasma transfer vial/tube (MedTox), labelled as serum

Transport container:

Serum/plasma transfer vial/tube (MedTox)

Alternate specimen type:

Heparin plasma

Alternate collection container:

Dk green heparin (Li or Na), no gel

Alternate collection instructions:

Immediately following collection, mix by inverting 8 - 10 times to prevent clotting

Alternate processing instructions:

Spin within two (2) hours of sample collection
Transfer plasma to a Serum/plasma transfer vial/tube (MedTox), labelled as the appropriate plasma type

Transport and stability:

Ambient (preferred) - 3 days

Refrigerated (OK)

Frozen (OK)

Reason for rejection:

Gel-barrier tubes are not recommended

Performance

Performing lab:

MedTox Laboratories (409): R-MX

Days set up:

Daily

TAT:

2 - 3 days

Method:

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

Clinical and Interpretive info

Reference ranges:

<235.0 ng/mL peak 45min post dose
≤234 ng/mL observed in trials (30 - 56 mg/day)

Results that require action (critical):

Not established

Billing

CPT codes:

80199

Tracking

Date created:

11/30/2001

Revised date:

12/28/2023

Review date:

12/28/2023