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Test Code LID Lidocaine, Serum


Specimen Required


Collection Container/Tube: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Collection Instructions: Red-top tubes should be centrifuged and the serum aliquoted into a plastic vial within 2 hours of collection.


Useful For

Assessing optimal lidocaine dosing during the acute management of ventricular arrhythmias following myocardial infarction or during cardiac manipulation such as surgery

 

Assessing potential lidocaine toxicity

Method Name

Enzyme-Multiplied Immunoassay Technique (EMIT)

Reporting Name

Lidocaine, S

Specimen Type

Serum Red

Specimen Minimum Volume

0.25 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Red Refrigerated (preferred) 14 days
  Ambient  14 days
  Frozen  14 days

Reference Values

Therapeutic: 1.5-5.0 mcg/mL

Critical value: >6.0 mcg/mL

Day(s) and Time(s) Performed

Monday through Saturday

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test has been modified from the manufacturer's instructions. Its performance characteristics were 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

80176

LOINC Code Information

Test ID Test Order Name Order LOINC Value
LID Lidocaine, S 3714-3

 

Result ID Test Result Name Result LOINC Value
8382 Lidocaine, S 3714-3

Forms

If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.