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) (1) Sample Type (-) Blood (2) RBCs (1) Serum or Plasma (2) Urine (1) Test Area (-) Drugs of Abuse (1) (-) Exposure (1) Therapeutics (8) Test Category Metals/Elements (1) Psychoactives (1) Test Sub-Category Cannabinoids (1) Toxic Elements (1) Test Test Name 0965B Recent Cannabis Use Markers, Blood 4124B Rubidium, Blood