Test directory: Topiramate

Ordering Code 5018
Test Name Topiramate
Alias Topamax
Preferred Specimen Serum
Preferred Container Plain (Red)
Other Specimen/Container Plasma in Lithium Heparin (Green), Plasma in Sodium Heparin (Green), Serum in No Additive (Dark Blue top)
Optimum Volume 1 mL
Collection Instructions For "peak" draws: 2-4 hours after dose is given
For "trough" draws: 1/2hr - 1 hr before dose is given.
Transport Requirements Oahu: Ambient
Airline: Ambient
Specimen Stability Ambient: 7 Days
Refrigerated: 14 Days
Frozen: 30 Days
Rejection Criteria SST
Avail. Stat NO
Analytic Time Up to 7 Days
Methodology Liquid Chromatography/Tandem Mass Spectrometry (LCMSMS)
Reference Lab  Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of June 29, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
Topiramate ALL See report.