- Start Date
- Expiration Date
- CPT Codes
- Reference Test
- Transport Info
Centrifuge and immediately transfer serum to separate plastic tube
- Fasting Required?
- Patient Instructions
- Reference Range
The proposed therapeutic range for seizure control is 30-60 µg/mL. Pharmacokinetics varies widely, particularly with co-medications, age, and/or compromised renal function. No critical value has been defined.
High Performance Liquid Chromatography (HPLC)
Evaluate toxicity. Monitor therapeutic levels.