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Levetiracetam
MessagePerforming Lab: Regions
Test Code
4034
Alias/See Also
Sunquest: LEVT; Keppra
CPT Codes
80177
Preferred Specimen
0.5 mL Red Top Serum (No Gel) tube
Minimum Volume
0.3 mL
Instructions
Processing:
Process blood as soon as possible after collection to prepare serum since hydrolysis of levetiracetam may occur in the prolonged presence of whole blood.
Process blood as soon as possible after collection to prepare serum since hydrolysis of levetiracetam may occur in the prolonged presence of whole blood.
Transport Temperature
Refrigerated
Specimen Stability
Refrigerated: 7 days
Frozen: 1 month
Frozen: 1 month
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Serum collected in Gel Tubes
Methodology
Enzyme Immunoassay (EIA)
Setup Schedule
Daily
Report Available
Same day.
Reference Range
6 - 46 µg/mL
Clinical Significance
Levetiracetam is an anti-convulsant drug approved for use as adjunctive therapy in the treatment of epilepsy. Levetiracetam level may be affected by compliance, renal function, pregnancy, drug-drug interactions and timing of the sample draw. Levetiracetam drug concentrations should be used in conjunction with information available from clinical evaluations and other diagnostic procedures.
