Collect

Acceptable: Serum - Red Top (NO GEL)
Red - Clot activator/silicone coated







 

Pediatric Collection

Acceptable: Serum - Red Top (NO GEL)





 

Specimen Preparation

Separate serum from cells ASAP or within 2 hours of collection. (Min: 0.5 mL)

Unacceptable Conditions

Serum/ Plasma separator tubes.
Grossly hemolyzed specimens.

Storage/Transport Temperature

Refrigerated

Stability (from collection to initiation)

After separation from cells:
 
Refrigerated ≤ 7 Days 
Frozen (≤ -10°C) 4 Weeks

Cerner Orderable(s)

Levetiracetam (Keppra) Level

Performed

St. Joseph’s Hospital

24/7
 

Ordering Recommendations

Optimize drug therapy and monitor patient adherence.

Methodology

Homogeneous Enzyme Immunoassay

Reported

Within 24 hours

Reference Interval

6 – 46 µg/mL (trough levels)
 

Interpretive Data

Pharmacokinetics of levetiracetam are affected by renal function. Adverse effects may include somnolence, weakness, headache and vomiting.


 

CPT Codes

80177
Collection

Collect

Acceptable: Serum - Red Top (NO GEL)
Red - Clot activator/silicone coated







 

Pediatric Collection

Acceptable: Serum - Red Top (NO GEL)





 

Specimen Preparation

Separate serum from cells ASAP or within 2 hours of collection. (Min: 0.5 mL)

Unacceptable Conditions

Serum/ Plasma separator tubes.
Grossly hemolyzed specimens.

Storage/Transport Temperature

Refrigerated

Stability (from collection to initiation)

After separation from cells:
 
Refrigerated ≤ 7 Days 
Frozen (≤ -10°C) 4 Weeks
Ordering

Cerner Orderable(s)

Levetiracetam (Keppra) Level

Performed

St. Joseph’s Hospital

24/7
 

Ordering Recommendations

Optimize drug therapy and monitor patient adherence.

Methodology

Homogeneous Enzyme Immunoassay

Reported

Within 24 hours
Result Interpretation

Reference Interval

6 – 46 µg/mL (trough levels)
 

Interpretive Data

Pharmacokinetics of levetiracetam are affected by renal function. Adverse effects may include somnolence, weakness, headache and vomiting.


 
Administrative

CPT Codes

80177

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