ARUP's Laboratory Test Directory

0098627: Keppra® (Levetiracetam)

Test Mnemonic: KEPPRA
Methodology: High Performance Liquid Chromatography

Performed: Mon-Fri

Reported: 1-4 days

Specimen Required:  
Collect: One 3 mL plain red. Also acceptable: lavender (EDTA), pink (K2EDTA), or green (sodium heparin).

Transport: 2 mL serum or plasma at 2-8°C. (Min: 0.8 mL) Submit specimen in an ARUP Standard Transport Tube.

Stability: After separation from cells: Ambient: 6 weeks; Refrigerated: 6 weeks; Frozen: 6 weeks

Reference Interval:
Therapeutic range: Not well established

Interpretive Data:
The proposed therapeutic range for seizure control is 5-30 µg/mL. Pharmacokinetics of levetiracetam are affected by renal function. The relationship between serum concentrations and toxicity is not known.



CPT Code(s):
80299