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 (1) Urine (1) Test Area (-) Therapeutics (1) Test Category Analgesics (2) Antiarrhythmics (1) Anticholinergics (1) Antidiabetics (1) Antiepileptics/Antiseizures (3) Antihistamines (3) Antipsychotics (3) Appetite Suppressants (1) Cholinesterase Inhibitors (1) (-) Diagnostic Aids (1) Vasodilators (2) Test Sub-Category (-) Other (1) Test Test Name 9249B Pseudoephedrine vs Ephedrine Differentiation Screen, Blood