-1651085832.png){kind=logo}
Home
HelpTest Code LID Lidocaine, Serum
Specimen Required
Supplies: Sarstedt Aliquot Tube 5 mL (T914)
Collection Container/Tube: Red top (serum gel/SST are not acceptable)
Submission Container/Tube: Plastic vial
Specimen Volume: 0.5 mL
Collection Instructions: Within 2 hours of collection, centrifuge and aliquot serum into a plastic vial.
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, SSpecimen Type
Serum RedSpecimen 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 |
Reject Due To
| Gross hemolysis | Reject |
Reference Values
Therapeutic: 1.5-5.0 mcg/mL
Critical value: >6.0 mcg/mL
Interpretation
Optimal response to lidocaine occurs when the serum concentration is between 1.5 and 5.0 mcg/mL.
Toxicity is more likely when concentrations exceed 6.0 mcg/mL.
Day(s) Performed
Monday through Saturday
Report Available
Same day/1 to 2 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
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.