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 (1) Urine (1) Test Area (-) Therapeutics (2) Test Category Antacids (2) Test Sub-Category Antibiotics (1) Anticoagulants (1) (-) Antihistamines (2) Dopamine Antagonists (2) Other (12) Test Test Name 4085B Ranitidine, Blood 4085SP Ranitidine, Serum/Plasma