Lamotrigine, Free


Sunquest Code:LAMOF  
Epic Code:LAB3581Epic Name:Lamotrigine Free
Synonyms:Lamictal, Free; Lamictal, Unbound
Methodology:Ultrafiltration; Immunoassay
CPT Code:80175
Turnaround Time:Specimens are sent to reference laboratory Mon-Fri; results are reported within 2 days.


Collection Instructions

Specimen:Blood
Optimal Volume:10 mL
Minimum\Peds Volume:2.6 mL
Container:Red (no gel) (Green (lithium heparin, no gel), Green (sodium heparin, no gel))
Collection Instructions:Trough levels are the most reproducible.


Processing and Shipping

Specimen Processing:Aliquot 5 mL, 1.2 mL minimum. Store at room temperature.
Shipping Instructions:Ship at room temperature.
Stability:Up to 3 days at room temperature; for longer storage, refrigerate or freeze.
Test Performed at or Referral Lab Lab Sendouts  (MedTox)
Referral Lab number:358


Interpretive

Reference Range:1.0-9.0 ug/mL. Current clinical information suggests the recommended concentrations for free lamotrigine during chronic therapy are 1.0-9.0 ug/mL.


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