Lamotrigine

Test Code

22060

Alias/See Also

LAB475

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

Transport Container

Transport tube

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)

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule

9: 00 a. M. Tues-sat

Report Available

2-4 days

Reference Range

2.5-15.0 mcg/mL

Clinical Significance

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

Performing Laboratory

Quest Diagnostics 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.