Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Colorimetry (C) (1) (-) Enzyme-Linked Immunosorbent Assay (ELISA) (5) Gas Chromatography/Mass Spectrometry (GC/MS) (1) Headspace Gas Chromatography (GC) (3) Sample Type Blood (8) (-) Fluid (5) Hair (2) Serum or Plasma (6) Tissue (3) Urine (8) Test Area (-) Drugs of Abuse (5) Test Category Drugs of Abuse (3) Drugs of Abuse, Therapeutics (2) Test Sub-Category Other (5) Your search has returned no tests.