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Test Code LAB685 Lidocaine Level

Important Note

Sample collection time guidelines:

  • 12 hours post-initiation of prophylactic lidocaine after suspected MI, and daily thereafter during treatment
  • At least every 12 hours in patients with evidence of cardiac or hepatic insufficiency
  • When lidocaine toxicity is suspected
  • When ventricular arrhythmias occur despite lidocaine administration

Reporting Title

Lidocaine

Methodology

Enzyme Immunoassay 

Performing Laboratory

OhioHealth Laboratory Services - RMH Core Laboratory

Specimen Requirements

Draw blood in a mint-top tube (preferred). 

Draw blood in a gold-top tube (acceptable). 

 

Specimen Transport Temperature

Refrigerate: OK

Frozen: NO

Ambient: OK

Reference Values

Therapeutic range:  1.5-5.0 mcg/mL

Critical value   >6.0 mcg/mL

Alerting category: Always called within 1 hour

Day(s) Test Set Up

Monday through Sunday continuously

Test Classification and CPT Coding

80176