Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Enzyme-Linked Immunosorbent Assay (ELISA) (3) Enzyme Immunoassay (EIA) (1) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (1) Test Area Therapeutics (1) Test Category Stimulants (1) Test Sub-Category Alkaloids (3) (-) Alpha/Beta Adrenergic Agonists (1) Antihistamines (1) Barbiturates (1) Benzodiazepines (16) Beta Blockers (2) Biomarkers (2) CNS Stimulants (1) Opiates/Opioids (11) Other (24) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (2) Sympathomimetic Agents (4) Synthetic Cannabinoids (2) Test Test Name 9165B Ephedrine Screen, Blood