ETHOSUXIMIDE, serum (087-0387)
Synonyms: Zarotin
CPT 4 Code: 80168
Test Order Mnemonic: ETHOSUXI
Lab: Clinical Chemistry
Request Form: Special Chemistry Form 2
Collection: Routine venipuncture; peak or trough
levels may be used to monitor therapy. Collect the sample immediately before the dose for
a trough level and 2-4 hours after the dose for a peak level.
Storage Instructions: Store blood at 2-8°C.
Centrifuge the specimen within 4 hours of collection, remove the serum from the red cells
and refrigerate.
Causes for Rejection: Blood drawn in gel separator
tubes
Availability: Samples are received 24 hours per day
at Sample Management, Room 5.136 McCullough.
Turnaround Time: Routine: 24 hours; STAT: 1 hour
Specimen: Blood
Volume: 3 mL blood
Minimum Volume: 0.5 mL serum
Container: Red-topped tube. Do not use gel
separator tube.
Reference Ranges: Therapeutic Range: 40-100 mcg/mL
Critical Values: Potential Toxicity: > 150 mcg/mL
Reviewed/revised April 2007 by P. Harris
