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Laboratory Test Directory

Keppra (Levetiracetam)

Components

Name Method Department Units
Keppra (Levetiracetam) Quantitative Enzyme Immunoassay
Send Out ug/mL

Specimen Requirements

Serum Spun, Plasma Spun

Container Type Container Size Specimen Volume
Preferred

Red tube, (no anticoagulant), No Gel

3 mL 1 mL
Alternate

Purple tube (EDTA)

3 mL 1 mL
Alternate

Green tube (Lithium heparin), No Gel

3 mL 1 mL
Alternate

Green tube (Sodium heparin), No Gel

3 mL 1 mL
Stability

Refrigerated - 1 week(s)
Frozen - 1 month(s)
Room temperature - 1 week(s)

Specimen Preparation

  • Centrifuge within 2 hours, separate supernatant and refrigerate

Reasons for Rejection

  • Wrong collection tube
  • Gross hemolysis
  • Collected in tube with gel separator

Comments

Timing of collection: Pre-dose (trough) draw - At steady state concentration.

CPT Code

  • 80177