Mnemonic LACOS
CPT 80339
Test Code 3555040
Synonyms Vimpat
Test Includes  
Specimen Serum
Volume 0.5 mL
Container Red Top Tube. Do NOT use SSTs.
Special Instructions Trough levels are most reproducible.
Specimen Prep Centrifuge* Transfer serum to Plastic Transport Tube.
Storage Refrigerate
Transport Temp Refrigerated
Stability Rm Temp  
Stability Refrig 72 hrs
Stability Frozen  
Methodology Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Rejection Criteria Polymer gel separation tube (SST or PST).  
Reference Value 5.0 - 10.0 ug/mL 
Performed/TAT Monday - Friday    Specimens received in-lab by 12 pm will be resulted same day. Not run on holidays.