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 (3) (-) Serum or Plasma (2) Test Area (-) Therapeutics (2) Test Category Anesthetics (1) Antianxiety (1) Antiarrhythmics (1) Anticholinergics (1) Antidiabetics (1) Antidiarrheals (1) Antiepileptics/Antiseizures (9) Antihistamines (3) Antipsychotics (5) Antithyroids (1) Antitussives/Cough Suppressants (2) Carbonic Anhydrase Inhibitors (1) Cholinesterase Inhibitors (1) Diuretics (1) Expectorants (1) (-) Immunosuppressants (2) Muscle Relaxants (3) NMDA Antagonists (1) Retinoids (2) Sedative/Hypnotics (3) Test Sub-Category (-) Other (2) Test Test Name 2531SP Leflunomide as Metabolite (Therapeutic Drug Monitoring), Serum/Plasma 2532SP Leflunomide as Metabolite (Pre-Pregnancy Monitoring), Serum/Plasma