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) (2) Sample Type Blood (1) Urine (1) Test Area Therapeutics (2) Test Category Alcohols (7) Analgesics (5) Anesthetics (1) Antiarrhythmics (2) Anticholinergics (3) Antidiabetics (2) Antiepileptics/Antiseizures (12) Antihistamines (7) Antimicrobials (1) Antipsychotics (7) Appetite Suppressants (3) Chemicals (1) Cholinesterase Inhibitors (3) (-) Diagnostic Aids (2) Drugs of Abuse (5) Drugs of Abuse, Therapeutics (5) Exposure (1) Hallucinogens (15) Herbicides (2) Perfluorinated Compounds (4) Plasticizers (1) Solvents (3) Therapeutics (14) Vasodilators (3) Volatiles (10) Test Sub-Category (-) Other (2) Test Test Name 9249B Pseudoephedrine vs Ephedrine Differentiation Screen, Blood 9249U Pseudoephedrine vs Ephedrine Differentiation Screen, Urine