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 Blood (2) Fluid (1) (-) Urine (1) Test Area Therapeutics (1) Test Category Anesthetics (1) Antianxiety (1) Anticholinergics (1) Antidepressants (2) Antiepileptics/Antiseizures (1) Antipsychotics (1) Antitussives/Cough Suppressants (2) Depressants (1) (-) Diagnostic Aids (1) Diuretics (1) Hallucinogens (1) Sedative/Hypnotics (2) Stimulants (3) Test Sub-Category (-) Other (1) Test Test Name 9249U Pseudoephedrine vs Ephedrine Differentiation Screen, Urine