Lidocaine Drug Level
Label Mnemonic: LIDO
Epic Lab Code: LAB641
Downtime Form: A-1a Therapeutic Drug Assay Requisition
Chemistry
6240 RCP
356-3527
Specimen(s):
Plasma
Collection Medium:
Plasma Separator Tube 4.5 mL
Alternate Collection Media:
Call laboratory for additional acceptable specimen collection containers.
Minimum:
3 mL light green top tube or ONE Microtainer®.
Testing Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around Time:
1 hour (upon receipt in laboratory)
Reference Range:
1.5-5.0 μg/mL Critical value: >5 μg/mL
Comments:
Availability: As needed.
Test Limitations:
Hemolysis: No significant interference up to an H index of 800 (approximate hemoglobin concentration: 800 mg/dL).

Lipemia: No significant interference up to an L index of 1000 (approximate triglycerides concentration: 2000 mg/dL). Note there is poor correlation between turbidity and triglyceride concentration.

Icterus: No significant interference up to an I index of 30 (approximate conjugated and unconjugated bilirubin concentration: 30 mg/dL).
Methodology:
Enzyme Immunoassay
CPT Code:
80176
 
See Additional Information:
Chemistry Critical Lab Values