Methodology
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Synonyms
Frisium; Norclobazam; Onfi; N-desmethylclobazam
Specimen Type
Serum
Performing Lab
Mayo Medical Lab
Epic ID
Other Reference Test
Lab Test Days
Monday-Friday
Standard TAT
1-5 Days
Collection Information
Specimen Required
1-2 mL Blood
Container Type
Red Top (No Additive)
Collection Instructions
Trough specimens are recommended as therapeutic ranges are based on specimens drawn at trough (immediately before the next does).
Processing Information - Lab Use Only
Transport Temperature
Refrigerate-OK/Frozen-OK/Ambient-OK
Specimen Stability
Room Temp: 28 Days; Refrigerated: 28 Days (Preferred); Frozen: 28 Days
Test Volume Required
0.5 mL Serum
Minimum Test Volume
0.35 mL Serum
Processing Instructions
Separate serum within 2 hours of collection. Order in Mayolink and send with Mayo courier Monday-Friday.
Included Tests
Clobazam and N-desmethylclobazam.
CPT Codes
80339
Revised
8/29/24
Initials
SA