Lamotrigine

Test Code: TD_5931

CPT Code(s): 80175

$29

Test Details

Alternative Name(s)

Lamictal

Test Includes

Lamotrigine

Methodology

Liquid chromatography-tandem mass spectrometry (LC-MS/MS)

Rejection Criteria

Samples collected in serum separator tube.

Reference Range(s)

2.5-15.0 MCG/ML

Specimen Requirements

Preferred Specimen

Plain Red Top Tube

Minimum Volume

0.2mL serum or plasma

Sample Stability

4 days room temperature
2 weeks refrigerated
1 month frozen

Transport Temperature

Refrigerated

Collection Instructions

Allow sample to clot in an upright position for at least 60 minutes, then centrifuge sample and transfer serum to a plastic transport tube within 2 hours of collection. Clearly label tube as serum from a plain red top tube. Refrigerate.
Note: Ideal sampling time for all antiepileptic drugs is immediately before the next oral dose (trough). If this is not possible, patients should not be advised to delay their scheduled dose for longer than 2-3 hours. Sample collection and the time that the medication was last ingested should be noted on the requisition.

Alternative Specimen

1 mL EDTA (lavender top), sodium fluoride (gray top), or sodium heparin (green top) plasma. Centrifuge sample and separate plasma from cells immediately. Transfer plasma to a plastic transport tube. Clearly label tube as EDTA, fluoride or heparin plasma. Refrigerate. Note: ideal sampling time for all antiepileptic drugs is immediately before the next oral dose (trough). If this is not possible, patients should not be advised to delay their scheduled dose for longer than 2-3 hours. Sample collection and the time that the medication was last ingested should be noted on the requisition.

Lamotrigine

$29

Test Details

Alternative Name(s)

Test Includes

Methodology

Rejection Criteria

Reference Range(s)

Specimen Requirements

Preferred Specimen

Minimum Volume

Sample Stability

Transport Temperature

Collection Instructions

Alternative Specimen

TRIBAL DIAGNOSTICS