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) (4) Sample Type (-) Blood (4) Serum or Plasma (4) Urine (1) Test Area Therapeutics (4) Test Category Antidiarrheals (1) Antiepileptics/Antiseizures (3) (-) Antihistamines (2) Antipsychotics (2) Hallucinogens (2) (-) Immunosuppressants (2) Metals/Elements (2) Test Sub-Category (-) Other (4) Test Test Name 2517B Levocetirizine, Blood 2525B Loratadine and Metabolite, Blood 2531B Leflunomide as Metabolite (Therapeutic Drug Monitoring), Blood 2532B Leflunomide as Metabolite (Pre-Pregnancy Monitoring), Blood