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) (3) Sample Type Blood (3) (-) Serum or Plasma (3) Urine (2) Test Area Therapeutics (3) Test Category Anesthetics (3) Antianxiety (1) Antidiarrheals (1) Antiepileptics/Antiseizures (3) Antihistamines (2) Antihypertensives (1) (-) Antimicrobials (1) Antipsychotics (2) Dopamine Precursor (1) Hallucinogens (2) (-) Immunosuppressants (2) Metals/Elements (2) Mood Stabilizers (1) Pesticides/Insecticides (1) Stimulants (1) Test Sub-Category Antiparasitics (1) Other (2) Test Test Name 2501SP Levamisole, Serum/Plasma 2531SP Leflunomide as Metabolite (Therapeutic Drug Monitoring), Serum/Plasma 2532SP Leflunomide as Metabolite (Pre-Pregnancy Monitoring), Serum/Plasma