Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Gas Chromatography (GC) (8) Headspace Gas Chromatography (GC) (2) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) High Performance Liquid Chromatography/Tandem Quadrupole Time of Flight Mass Spectrometry. (4) Sample Type Blood (1) Urine (1) Test Area Therapeutics (2) Test Category Alcohols (2) Analgesics (11) Antiarrhythmics (1) Anticholinergics (6) Antidepressants (6) Antiemetics (1) Antiepileptics/Antiseizures (1) Antihypertensives (2) Antipsychotics (2) Antitussives/Cough Suppressants (3) Decongestants (4) Depressants (9) (-) Diagnostic Aids (2) Diuretics (1) Drugs of Abuse (4) NPS/Designer Drugs (2) Other (1) Sedative/Hypnotics (6) Stimulants (6) Test Sub-Category Other (2) Test Test Name 9249B Pseudoephedrine vs Ephedrine Differentiation Screen, Blood 9249U Pseudoephedrine vs Ephedrine Differentiation Screen, Urine