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HelpTest Code FGTIA Tiagabine (Gabitril), Serum
Method Name
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Reporting Name
Tiagabine (Gabitril), SSpecimen Type
Serum RedSpecimen Required
Draw blood in a plain red-top tube(s), serum gel tube is not acceptable. Spin down and send 3 mL of serum refrigerated in a plastic vial.
Specimen Minimum Volume
0.6 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum Red | Refrigerated (preferred) | 14 days | |
| Frozen | 180 days | ||
| Ambient | 72 hours |
Reject Due To
| Hemolysis | NA |
| Lipemia | NA |
| Icterus | NA |
| Other | NA |
Reference Values
Report Limit: 5.0 ng/mL
Reference Range: <235.0 ng/mL
Therapeutic and toxic ranges have not been established.
Peak concentrations are expected at 45 minutes post dose; steady state is generally attained within 2 days.
Observed tiagabine concentrations in clinical trials (30 – 56 mg/day): <1 – 234 ng/mL.
Measured tiagabine concentrations, post marketing (95% confidence interval): 0 – 440 ng/mL.
Note: The 95% confidence interval for tiagabine concentrations determined by MEDTOX Laboratories will be updated periodically as more information becomes available.
Day(s) Performed
Monday through Sunday
Report Available
2 to 6 daysPerforming Laboratory
Medtox Laboratories, Inc.CPT Code Information
80199
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| FGTIA | Tiagabine (Gabitril), S | 21565-7 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| Z4403 | Tiagabine | 21565-7 |