Topiramate
Order Name
TOPIRAMATE
Test Number: 4505125
Revision Date 12/12/2022
Test Number: 4505125
Revision Date 12/12/2022
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Topiramate
|
Enzyme Immunoassay | 17713-9 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 0.5 mL (0.3) | Serum | Clot Activator (Red Top, No-Gel) | Room Temperature |
| Alternate 1 | 0.5 mL (0.3) | Plasma | Sodium Heparin (Green Top / No-Gel) | Room Temperature |
| Alternate 2 | 0.5 mL (0.3) | Plasma | Lithium Heparin (Dark Green Top / No-Gel) | Room Temperature |
| Instructions | Notes: 0.3 mL (Note: This volume Does NOT allow for repeat testing). Specimen Type: Red-top tube, Sodium heparin tube, Lithium heparin tube DO NOT USE A GEL BARRIER TUBE. The use of gel-barrier tubes is not recommended due to slow absorption of the drug by the gel. Depending on the specimen volume and storage time, the decrease in drug level due to absorption may be clinically significant. Specimen Storage: Room Temperature Specimen Collection: Separate serum from cells within 45 minutes of collection and transfer to a plastic transport tube. Separate plasma immediately and transfer to a plastic transport tube for shipment to the laboratory. Specimen Stability: Ambient: 14 days, Refrigerated : 7 days, Frozen: 4 weeks |
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| GENERAL INFORMATION | |
|---|---|
| Testing Schedule | Sun-Sat |
| Expected TAT | 2 - 4 days reported within 24 hours. |
| Clinical Use | Topiramate is an anticonvulsant used as an adjunctive treatment of partial-onset epilepsy. Therapeutic drug monitoring is useful to optimize dose and avoid toxicity |
| Performing Labcorp Test Code | 716285 |
| Notes | Labcorp Test Code: 716285 |
| CPT Code(s) | 80201 |
| Lab Section | Reference Lab |