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HelpTest Code FGTIA Tiagabine (Gabitril), Serum
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 |
|---|---|---|
| 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
Performing 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 |
Method Name
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)