Test directory: Ethosuximide

Ordering Code 3916
Test Name Ethosuximide
Alias Zarontin
Preferred Specimen Serum
Preferred Container Plain (Red)
No gel barrier tubes.
Other Specimen/Container Plasma in EDTA, K2 (Lavender), Plasma in Sodium Heparin (Green)
Optimum Volume 1 mL
Collection Instructions Do Not use SST
Do Not use PST
Optimum time to collect sample is 4 hours post oral dose.
Transport Requirements Oahu: Refrigerated
Airline: Refrigerated
Specimen Stability Ambient: 4 Days
Refrigerated: 1 Week
Frozen: 1 Month
Rejection Criteria Gel barrier tube
Avail. Stat NO
Analytic Time Up to 5 Days
Methodology Enzyme Immunoassay (EIA)
Reference Lab  Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of July 6, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
Ethosuximide ALL See report.