Topiramate, Serum (Referred Out) - Saskatoon
Discipline
Biochemistry
Overview
Description
Ordering recommendation
- Collect trough level prior to next dose
Alias
- Topamax
Specimen Information
Specimen types accepted
- Serum
Specimen collection container
- Preferred collection container: Red (no additive) 6 mL
Collection procedure
- Serum must be separated from cells within 2 hours of collection
Required volume
- Optimal volume: 4.5 mL full collection tube
- Minimum volume: 1. mL serum
(Submitting the minimum volume makes it impossible to repeat the test or perform confirmatory/reflex testing. In some situations, a minimum volume may require a second collection.)
Transport and stability
- Freeze within 24 hours
- Send to referral laboratory frozen
Rejection criteria
- Specimens received where the proper collection protocols were not followed
- Pathology and Laboratory Medicine Acceptance and Rejection Criteria
Performance
Methodology
- Liquid chromatography/tandem mass spectrometry (LC-MS/MS)
Days/times performed
| Availability |
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Maximum laboratory time
Results reporting
- 5 day turnaround time by testing laboratory
Last Updated: October 24, 2024