Lidocaine : 605

Test Code
LIDOAU or 605

Alias/See Also

CPT Codes

Collect as a trough just prior to next dose.

Transport Container
Preferred Specimen
1 mL serum collected in a red-top tube (no gel)
Alternative Specimens
Plasma collected in: EDTA (lavender-top) tube, sodium heparin (green-top) tube, or fluoride/oxalate (gray-top) tube
Minimum Volume
0.2 mL

Transport Temperature
Room temperature.

Specimen Stability
Room temperature: 5 days; Refrigerated: 7 days; Frozen: 30 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Serum Separator Tube (SST)


Setup Schedule
Sunday - Saturday

Report Available
1 day

Reference Range
1.5-5.0 mg/L

Clinical Significance
Lidocaine direct injection or infusion is used in the emergency treatment of ventricular arrhythmias caused by acute myocardial infarction, open-heart surgery. It is also used for topical anesthesia administered as a gel or by injection. Lidocaine levels are monitored to assure adequate therapeutic levels are achieved and to avoid toxicity.

Performing Laboratory
med fusion

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.