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HelpTest Code Epic LAB498 Topiramate, Serum
Additional Codes
SQ code TOPIRM
Mayo code TOPI
Reporting Name
Topiramate, SSpecimen Type
Serum RedPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Useful For
Monitoring serum concentrations of topiramate
Assessing compliance
Assessing potential toxicity
Specimen Required
Collection Container/Tube: Red top (serum gel/SST are not acceptable)
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions:
1. Draw blood immediately before next scheduled dose.
2. Centrifuge and aliquot serum into plastic vial; within 2 hours of collection.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum Red | Refrigerated (preferred) | 28 days | |
| Ambient | 28 days | ||
| Frozen | 28 days |
Reference Values
Anticonvulsant: 5.0-20.0 mcg/mL
Day(s) Performed
Monday through Friday
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
80201
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| TOPI | Topiramate, S | 17713-9 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 81546 | Topiramate, S | 17713-9 |
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | OK |
| Gross icterus | OK |
Method Description
Samples are diluted and extracted online by liquid chromatography, with detection by tandem mass spectrometry.(Unpublished Mayo method)
Report Available
1 to 2 daysSecondary ID
81546Forms
If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:
-Neurology Specialty Testing Client Test Request (T732)
-Therapeutics Test Request (T831)