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) Sample Type Serum or Plasma (1) (-) Urine (1) Test Area Exposure (1) Test Category Pesticides/Insecticides (1) Test Sub-Category Alcohols (5) Alkaloids (2) Antipyretics (3) Antivirals (2) (-) Avicides (1) Barbiturates (5) Benzodiazepines (3) Beta-2 Andrenergic Agonists (1) Beta Blockers (2) Cannabinoids (2) Carbonic Anhydrase Inhibitors (1) CNS Stimulants (1) Cocaine (1) Designer Benzodiazepines (1) Hallucinogens (2) Herbicides (1) Hydrocarbons (1) Macrominerals (1) Opiates/Opioids (6) Other (25) Phenothiazines (1) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (1) Small Molecule (3) Solvents (1) Sympathomimetic Amines (1) Tetracyclics (1) Toxic Elements (14) Tricyclic (2) Test Test Name 0276U 4-Aminopyridine Exposure, Urine