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Ethosuximide

Source Blood
Mnemonic ETHO
Specimen Requirements

1 x 3 mL light green (mint) top PST tube.  Gold top SST tube is also acceptable.

Pediatric: 0.2 mL whole blood

Specimen Handling PSC, RRL & Extra-regional:
Centrifuge, pour off and transport plasma or serum on ice to DSC. Send specimen in a separate bag with a photocopy of the requisition.

DSC:
Store specimen in refrigerator.
Additional Information

Record time of last medication on requisition.

Recommend trough sample at steady-state. Collect just prior to next dose.

For additional information, see Half-life and Time to Steady State.

Testing Location University of Alberta
Testing Frequency
Alternate Name(s) Zarontin
Reference Interval Click here for critical values.