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26422 Tiagabine (Gabitril), Serum (FGTIA)

Tiagabine (Gabitril), Serum (FGTIA)
Test Code: FGTIASO
Synonyms/Keywords

​Gabitril

Specimen Requirements
Specimen TypePreferred Container/TubeAcceptable Container/TubeSpecimen VolumeSpecimen Minimum Volume
(allows for 1 repeat)		Pediatric Minimum Volume
(no repeat)
​Serum Red​Red Top Tube (RTT)​​3 mL​0.6 mL​
Collection Processing Instructions

​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 Stability Information
Specimen TypeTemperatureTime
​Serum Red ​ ​​Refrigerated (preferred)​14 days
​Frozen​180 days
​Ambient​72 hours
Performing Laboratory Information
Performing LocationDay(s) Test PerformedReport AvailableMethodology/Instrumentation
​Mayo Clinic Laboratories forwards to Medtox Laboratories​Monday through Sunday​2 to 6 days​Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Reference Lab
Mayo Clinic Laboratories
Reference Range Information
Performing LocationReference Range
​Medtox Laboratories​

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.

Outreach CPTs
CPTModifier
(if needed)		QuantityDescriptionComments
​80199​​1​​
Synonyms/Keywords

​Gabitril

Ordering Applications
Ordering ApplicationDescription
​COM​Tiagabine (Gabitril), Serum (FGTIA)
​Cerner​Tiagabine (Gabitril), Serum (FGTIA)
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Specimen TypePreferred Container/TubeAcceptable Container/TubeSpecimen VolumeSpecimen Minimum Volume
(allows for 1 repeat)		Pediatric Minimum Volume
(no repeat)
​Serum Red​Red Top Tube (RTT)​​3 mL​0.6 mL​
Collection Processing

​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 Stability Information
Specimen TypeTemperatureTime
​Serum Red ​ ​​Refrigerated (preferred)​14 days
​Frozen​180 days
​Ambient​72 hours
Reference Range Information
Performing LocationReference Range
​Medtox Laboratories​

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.

For more information visit:
Performing Laboratory Information
Performing LocationDay(s) Test PerformedReport AvailableMethodology/Instrumentation
​Mayo Clinic Laboratories forwards to Medtox Laboratories​Monday through Sunday​2 to 6 days​Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Reference Lab
Mayo Clinic Laboratories
For billing questions, see Contacts
Outreach CPTs
CPTModifier
(if needed)		QuantityDescriptionComments
​80199​​1​​
For most current information refer to the Marshfield Laboratory online reference manual.