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 (2) Serum or Plasma (2) (-) Urine (2) Test Area (-) Therapeutics (2) Test Category (-) Anesthetics (1) Antacids (1) Antipsychotics (1) (-) Sedative/Hypnotics (1) Test Sub-Category Other (2) Test Test Name 4086U Ramelteon and Metabolite, Urine 4120U Ropivacaine, Urine