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 Postmortem (1) (-) Therapeutics (1) Test Category Analgesics (8) Anesthetics (4) Antianxiety (1) Antiarrhythmics (3) Anticholinergics (2) Antidepressants (9) Antiepileptics/Antiseizures (3) Antihistamines (2) Antihypertensives (1) Antipsychotics (4) Decongestants (1) Depressants (1) (-) Diagnostic Aids (1) Muscle Relaxants (2) Sedative/Hypnotics (5) Stimulants (1) Vasodilators (1) Test Sub-Category Other (1) Test Test Name 9249B Pseudoephedrine vs Ephedrine Differentiation Screen, Blood