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) Sample Type Blood (1) Test Area (-) Drugs of Abuse (1) Exposure (6) Test Category (-) Alcohols (1) Drugs of Abuse (11) Exposure (1) Hallucinogens (14) NPS/Designer Drugs (2) Therapeutics (17) Test Sub-Category Biomarkers (1) Test Test Name 3752B Phosphatidylethanol, Blood