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) Therapeutics (4) Test Category Alcohols (1) Test Sub-Category (-) Biomarkers (1) Other (14) Stimulants (2) Test Test Name 3752B Phosphatidylethanol, Blood