Laboratory Test Reference Guide

Laboratory Information

Test Name

Lamotrigine

External Price (excl. GST)

65.5

Specimen Collection

Adult Specimen

Plain Red top tube ONLY. Do not use gel tubes for this assay.

Specimen Collection and Transport Protocols

Trough levels: Collect sample prior to administration of the next dose.

Paediatric Specimen

0.3 ml Plain (Red top)

Instructions for Referral to Waikato Lab

Aliquot instructions

Separate as soon as possible.

Test Information

Department

Sendaway - Biochemistry

Test Availability

Referred to external laboratory.

Laboratory Turnaround Time

7 days

Unit of measurement

umol/L

Reference interval

12 - 58 umol/L

Additional Information

Phenytoin, phenobarbital (phenobarbitone) or carbamazepine doubles clearance. Valproate reduces clearance by 50%

Do not collect in tubes containing Gel

Minimum Volume

0.1 ml of serum.

Electronic Information

Registration Code

LAMO

HL7 mapping code

$LAMO

LOINC Code

25458-1