Test Overview
Clinical Utility
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.
Method
Immunoassay (IA)
Result Included
Lidocaine
Aliases/Synonyms
Xylocaine®
Specimen
Specimen Type
Avoid gel separator tubesSerum
Plasma (heparin)
Plasma (oxalate/fluoride)
Plasma (EDTA)
Containers
Preferred Containers
Serum (red top)
Acceptable Containers
Plasma (heparin); Plasma (oxalate/fluoride); Plasma (EDTA)
Volume
Sample Volume
1.0 mL
Minimum Volume
0.2 mL
Specimen Comment
Avoid gel separator tubes.
Collection & Handling
Collection Instructions
Collect trough specimen within 1 hour prior to next dose.
Handling Information
Store and send frozen.
Stability
| Ambient | Refrigerated | Frozen |
|---|---|---|
| 5 days | 7 days | 30 days |
Rejection Criteria
| Criteria | Specification |
|---|---|
| Other | Gel-separator tube |
Performance & Interpretation
Turnaround Time
6 days
Results
Name
Units
Reference Range
Conversion
-
Lidocainemg/L1.5 - 5.0
Referral Location
Out-of-Country
Interface & Setup
HL7 Interface Codes
| Order Code | Result Name | Result Codes | Units |
|---|---|---|---|
| LIDOQ S | LIDOCAINE | 63110 | mg/L |
Test Version
Last Updated
2023-01-31