Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Headspace Gas Chromatography (GC) (1) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type (-) Blood (1) Urine (1) Test Area Therapeutics (1) Test Category Analgesics (5) Anesthetics (3) Antianxiety (1) Antiarrhythmics (2) Anticholinergics (2) Antidepressants (9) Antiepileptics/Antiseizures (3) Antihistamines (2) Antihypertensives (1) Antipsychotics (5) Decongestants (1) Depressants (2) (-) Diagnostic Aids (1) Muscle Relaxants (1) NPS/Designer Drugs (1) Other (1) Sedative/Hypnotics (4) Stimulants (2) Vasodilators (1) Test Sub-Category Other (1) Test Test Name 9249B Pseudoephedrine vs Ephedrine Differentiation Screen, Blood