Keppra
24 hours
Competitive Enzymatic Immunoassay
10 - 40 µg/mL
Trough (pre-dose) specimens are preferred and, while tubes containing gel separators will not be rejected, they may cause falsely low results due to the gel absorbing the drug.
Accredited NRL Laboratory
Daily
Levetiracetam (Keppra), is a broad-spectrum antiepileptic drug widely used for the management of focal-onset seizures, generalized tonic–clonic seizures, and myoclonic seizures in both adults and children.
Its clinical utility lies in its rapid onset of action, favourable safety profile, minimal drug–drug interactions, and predictable pharmacokinetics, making it suitable for acute seizure control, chronic therapy, and adjunctive treatment in refractory epilepsy.
Li-Hep Plasma or Serum
0.5 mL
Lithium Heparin Plasma (Green Top, no gel) or Plain Serum Tube (Red Top, no gel)
No special preparation is required for this test; you may eat and drink as normal, unless instructed otherwise by your healthcare provider. However, a trough (pre-dose) sample is preferred.
This test does not require any special collection or pre-analytical handling. Follow routine specimen collection protocols.
| Temperature | Period |
|---|---|
| Refrigerated | 7 days |
| Frozen | 4 weeks |