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 (1) Analgesics (5) Anesthetics (1) Antidepressants (2) Antidiabetics (1) Antiepileptics/Antiseizures (7) Antihistamines (2) Antihypertensives (4) Antimicrobials (1) Antipsychotics (5) Appetite Suppressants (2) Decongestants (7) (-) Diagnostic Aids (2) Exposure (1) Hallucinogens (4) Herbicides (1) NPS/Designer Drugs (1) Perfluorinated Compounds (1) Plasticizers (1) Test Sub-Category Other (2) Test Test Name 9249B Pseudoephedrine vs Ephedrine Differentiation Screen, Blood 9249U Pseudoephedrine vs Ephedrine Differentiation Screen, Urine