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) Anesthetics (1) Antidepressants (2) Antiepileptics/Antiseizures (2) Antihistamines (2) Antihypertensives (2) Antipsychotics (1) Appetite Suppressants (1) Decongestants (4) (-) Diagnostic Aids (1) Hallucinogens (3) Plasticizers (1) Test Sub-Category Other (1) Test Test Name 9249U Pseudoephedrine vs Ephedrine Differentiation Screen, Urine