Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) (-) Gas Chromatography (GC) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (3) Immunoassay (IA) (1) Sample Type Blood (1) Fluid (1) (-) Serum or Plasma (1) Tissue (1) Urine (1) Test Area Therapeutics (1) Test Category Anesthetics (1) Test Sub-Category (-) Antiarrhythmics (1) Barbiturates (1) Insecticides (1) Opiates/Opioids (2) Organochlorides (1) Other (13) Phenothiazines (1) Tetracyclics (1) Tricyclic (1) Vasodilators (1) Test Test Name 2512SP Lidocaine and Metabolite (MEGX), Serum/Plasma