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Levetiracetam, Serum

Additional Codes

Primary ID

SQ Code

PRISM Code

Mayo Test ID

LEVET

LEVET

LAB477

LEVE

 


Specimen Required


Container/Tube:

Preferred: Red top

Acceptable: Serum gel

Specimen Volume: 1 mL

Collection Instructions:

1. Draw blood immediately before next scheduled dose.

2. For sustained-release formulations ONLY, draw blood a minimum of 12 hours after last dose.

3. Spin down within 2 hours of draw.


Forms

If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:

-Neurology Specialty Testing Client Test Request (T732)

-General Request (T239)

Useful For

Monitoring serum concentration of levetiracetam, particularly in patients with renal disease

 

Assessing compliance

 

Assessing potential toxicity

Method Name

Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)

Reporting Name

Levetiracetam, S

Specimen Type

Serum

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 28 days
  Ambient  28 days
  Frozen  28 days

Reject Due To

Hemolysis

Mild OK; Gross OK

Lipemia

Mild OK; Gross OK

Icterus

Mild OK; Gross OK

Other

NA

Reference Values

12.0-46.0 mcg/mL

Day(s) and Time(s) Performed

Monday through Friday; Continuous until 2 p.m.

Saturday; Continuous until 1 p.m.

Sunday; 11 a.m.

Analytic Time

Same day/1 day

Specimen Retention Time

14 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information

80177

LOINC Code Information

Test ID Test Order Name Order LOINC Value
LEVE Levetiracetam, S 30471-7

 

Result ID Test Result Name Result LOINC Value
83140 Levetiracetam, S 30471-7

NY State Approved

Yes