Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (1) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (1) Sample Type Blood (1) Fluid (1) Hair (1) Liquid (1) Nails (1) RBCs (1) (-) Serum or Plasma (2) Tissue (1) Test Area Exposure (1) Therapeutics (1) Test Category Dopamine Precursor (1) Metals/Elements (1) Test Sub-Category Amphetamines (1) Antiarrhythmics (3) Antiparasitics (1) Benzodiazepines (1) Beta Blockers (1) Insecticides (1) Metals/Elements (1) Other (13) (-) Parkinsons (1) (-) Toxic Elements (1) Test Test Name 2492SP Lead, Serum/Plasma 2504SP Levodopa, Serum/Plasma