Resources

Lamotrigine

Message
Performed at BUMCP


Test Code
LAMO


Alias/See Also
Lamictal


CPT Codes
80175

Preferred Specimen
6.0 mL Red Top only - serum


Minimum Volume
1.0 mL serum
3.0 mL whole blood


Other Acceptable Specimens
Li or NA Heparin, EDTA - For consistency, should use the same tube type for each individual patient.


Instructions
Draw 1/2 to 1 hour before next dose at steady state.
Allow specimen to fully clot before centrifuging.


Transport Temperature
Refrigerated


FDA Status
LDT

Report Available
Test availability and turn around time is 5 - 7 days.


Clinical Significance
Lamotrigine (LAMICTAL®, 3,5-diamino-6-(2,3-dichlorophenyl)-1,2,4-triazine) is an anti-convulsant
drug approved for use in the treatment of epilepsy and is often prescribed as monotherapy or as one
component of a multiple anti-epileptic drug therapy. Lamotrigine was approved by the United States
Food and Drug Administration (FDA) in late 1994 as an adjunctive therapy for partial seizures.
Lamotrigine has since gained indications as monotherapy for partial seizures and also as a treatment
for bipolar disorder. Lamotrigine has also accumulated a solid safety record in pregnancy, leading to
the common use of this AED in pregnant women with epilepsy.




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.