Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Enzyme-Linked Immunosorbent Assay (ELISA) (2) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (9) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (2) (-) Inductively Coupled Plasma/Optical Emission Spectrometry (ICP/OES) (1) Sample Type Blood (4) (-) Fluid (2) Serum or Plasma (3) Stool (1) Tissue (1) Urine (4) Test Area Exposure (1) Therapeutics (1) Test Category Analgesics (1) Metals/Elements (1) Test Sub-Category Macrominerals (1) Opiates/Opioids (1) Test Test Name 3765FL Phosphorus - Total, Fluid 3990FL Propoxyphene and Metabolite, Fluid