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Test Code LAB475 Lamotrigine, Serum

Additional Codes


Reporting Title

Lamotrigine, Serum


Roche Diagnostics cobas 8000 Enzyme Immunoassay

Useful For:

Monitoring serum concentration of lamotrigine

Assessing compliance

Adjusting lamotrigine dose in patients receiving other anticonvulsant drugs which interact pharmacokinetically with lamotrigine

Performing Laboratory

OhioHealth Laboratory Services- RMH Special Testing

Specimen Transport Temperature

Ambient NO/Refrigerate/Frozen

Reference Values

3.0-15.0 mcg/mL

Day(s) Test Set Up

Monday through Friday; Day and evening shift

Saturday and Sunday; Day shift 

Test Classification and CPT Coding


Specimen Required

Specimen Requirements

Collection Instructions:

1. Draw blood immediately before next scheduled dose.

2. For sustained-release formulations ONLY, draw blood a minimum of 12 hours after last dose.

3. Spin down within 2 hours of draw.


Serum Only:

Draw blood in a red-top tube. Gel Tube is unacceptable

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 7 days
  Frozen  28 days