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) (1) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (2) Sample Type Blood (2) (-) RBCs (1) Serum or Plasma (2) (-) Urine (2) Test Area Exposure (2) Therapeutics (1) Test Category (-) Anesthetics (1) Antacids (1) Antipsychotics (1) (-) Metals/Elements (2) Sedative/Hypnotics (1) Test Sub-Category Other (1) Toxic Elements (2) Test Test Name 4120U Ropivacaine, Urine 4124R Rubidium, RBCs 4124U Rubidium, Urine