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Test ID FMETX Methsuximide (Celontin) as Desmethylmethsuximide

Method Name

Gas Chromatography/Flame Ionization Detection (GC-FID)

Reporting Name

Methsuximide (Celontin)

Specimen Type


Specimen Required

Submit only 1 of the following specimens:



Draw blood in a green-top (sodium heparin) tube(s), plasma gel tube is not acceptable. Spin down and send 2 mL sodium heparin plasma refrigerated in a plastic vial.



Draw blood in a plain red-top tube(s), serum gel tube is not acceptable. Spin down and send 2 mL of serum refrigerated in a plastic vial.

Specimen Minimum Volume

0.25 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Varies Refrigerated (preferred) 7 days
  Frozen  180 days
  Ambient  72 hours

Reference Values

10.0 - 40.0 ug/mL


Methsuximide measured as desmethylmethsuximide.


Day(s) Performed

Monday through Sunday

Performing Laboratory

Medtox Laboratories, Inc.

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
FMETX Methsuximide (Celontin) 3801-8


Result ID Test Result Name Result LOINC Value
Z1107 Methsuximide 3801-8

Report Available

3 to 7 days

NY State Approved