Lamotrigine

Message

Optimal collection time: 30-60 minutes before dose

Test Code

22060

Alias/See Also

Paragon order LAMOT

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

Specimen Stability

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

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Gross hemolysis • Gross Lipemia • Gel barrier/Serum Separator Tube (SST^®)

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

Setup Schedule

Tue-Sat

Report Available

2 to 4 Day(s)

Clinical Significance

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

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.