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) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (1) Sample Type Blood (4) Fluid (1) RBCs (1) (-) Serum or Plasma (4) Tissue (1) Urine (1) Test Area Therapeutics (4) 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 Metals/Elements (1) Other (3) Test Test Name 2520SP Lithium, Serum/Plasma 2531SP Leflunomide as Metabolite (Therapeutic Drug Monitoring), Serum/Plasma 2532SP Leflunomide as Metabolite (Pre-Pregnancy Monitoring), Serum/Plasma 2533SP Loperamide and Metabolite, Serum/Plasma