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HelpEpic Code LAB477 Levetiracetam Level
Test Name Alias
Keppra
Interface Order Alias
10822
Collection Instructions
Specimen Collection: Blood
Container(s): Red top (no additive)
Preferred Volume to Collect: 3.0 mL
Minimum Volume to Collect: 2.0 mL
Neonate Volume to Collect: 2.0 mL
Capillary collect ok? Yes
Microtainer acceptable? Yes
Collection Instructions:
- After collection, gently invert tube 8-10 times.
- Specimen should be processed – See Processing Instructions.
Processing Instructions (Laboratory, Outpatient or Off-site collection)
Processed Specimen: Serum
Centrifuge/Spin: Yes
Aliquot: Yes
Processing Instructions:
- When tubes are clotted (30-45 minutes), centrifuge specimens
- Pipette serum into aliquot tube
Minimum serum volume: 1.0 mL
Transport Temperature: Ambient
Specimen Stability
Ambient: 72 hours
Refrigerate: 7 days
Frozen: 14 days
Laboratory Retention: 7 days
Test Frequency
Available 24 hours, usual TAT 1 day.
STAT TAT 2 hours
Reference Range
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CHW
Brivaracetam (Briviact®) interferes with measurements of levetiracetam (Keppra®) in the ARK Levetiracetam Assay. Patients undergoing a switch in drug therapy involving Keppra and Briviact should not be monitored for levetiracetam using the ARK assay. Serum levels of levetiracetam and/or brivaracetam should be confirmed by a valid chromatographic method if there is a possibility these drugs are co-present in circulation. |
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CHS 12.0 - 46.0 mcg/mL |
Performing Department
Toxicology
Performing Department Laboratory Location
CHW: Corewell Health Reference Laboratory, Grand Rapids, MI
CHS: Corewell Health Lakeland St. Joseph Laboratory, St. Joseph, MI
Methodology
Colorimetric
CPT
80177
CDM Code
3018017701
Epic Test ID
1230100884
LOINC
Levetiracetam Lvl: 30471-7
Mayo Access Code
SHO3140
Reviewed Date
3/25/2025
Updated Date
5/20/2025 - CHS info added