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Test Directory

Lamotrigine

Test Summary

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

Aliases

  • N/A

Specimen Collection

Special Instructions

N/A

Preferred Specimen

1 mL serum collected in a red-top tube (no gel)

Minimum Volume

0.5 mL

Instructions

N/A

Patient Preparation

Draw 1/2 to 1 hour before next dose at steady-state

Storage

Plastic screw-cap vial

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

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

Limitations

N/A

Other Acceptable Specimens

Plasma collected in: EDTA (lavender-top) tube or sodium heparin (green-top) tube

Unacceptable Specimens

Gross hemolysis • Grossly lipemic • Gel barrier/serum separator tube (SST)

Order Code

LAMOTR

EPIC (Premier) Code

LAB631

Includes

N/A

CPT Code

  • 80175

Billing Code

  • 700000

CPT Statement

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 the U.S. Food and Drug Administration. The FDA has determined that such clearance or approval is not necessary. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Physician Attestation of Informed Consent

N/A

Testing Laboratory

Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly VA, 20153

Reference Range

2.5-15.0 mcg/mL

Setup Schedule / Expected Turnaround Time

Tuesday - Saturday; Report available: 2 - 4 days

Specimen Collection

Special Instructions

N/A

Preferred Specimen

1 mL serum collected in a red-top tube (no gel)

Minimum Volume

0.5 mL

Instructions

N/A

Patient Preparation

Draw 1/2 to 1 hour before next dose at steady-state

Storage

Plastic screw-cap vial

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

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

Limitations

N/A

Other Acceptable Specimens

Plasma collected in: EDTA (lavender-top) tube or sodium heparin (green-top) tube

Unacceptable Specimens

Gross hemolysis • Grossly lipemic • Gel barrier/serum separator tube (SST)

Billing

CPT Code

  • 80175

Billing Code

  • 700000

CPT Statement

Result Information

Methodology

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

Testing Laboratory

N/A

Reference Range

2.5-15.0 mcg/mL

Setup Schedule / Expected Turnaround Time

Tuesday - Saturday; Report available: 2 - 4 days