Lamotrigine

Test Code
LAMO


Quest Code
22060


Alias/See Also
Lamictal


CPT Codes
80175

Preferred Specimen
1 mL serum collected in a red-top tube (no gel)


Patient Preparation
Draw 1/2 to 1 hour before next dose at steady-state

Minimum Volume
0.5 mL


Other Acceptable Specimens
Plasma collected in: EDTA (lavender-top) tube or sodium heparin (green-top) tube


Instructions
Do not use gel barrier/Serum Separator tubes (SST®)


Transport Temperature
Refrigerated (cold packs)


Specimen Stability
Room temperature: 48 hours
Refrigerated: 5 days
Frozen: 14 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Grossly lipemic • Gel barrier/Serum Separator Tube (SST®)


Methodology
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)

Setup Schedule
P.M. Sets up 5 days a week.


Report Available
Reports in 2 days.


Reference Range
4.0-18.0 mcg/mL


Clinical Significance
Lamotrigine is an anticonvulsant drug used as adjunctive treatment for refactory partial seizures.


Performing Laboratory
Quest Diagnostics Valencia Nichols Institute
27027 Tourney Road
Valencia, CA 91355-5386




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.