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 (1) (-) Serum or Plasma (2) Urine (1) Test Area Therapeutics (2) Test Category Antacids (1) Antimicrobials (1) Test Sub-Category (-) Antibiotics (1) Anticoagulants (1) (-) Antihistamines (1) Cannabinoids (1) Dopamine Antagonists (1) Other (6) Toxic Elements (1) Test Test Name 4085SP Ranitidine, Serum/Plasma 4110SP Rifampin, Serum/Plasma