Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) (-) Enzymatic Assay (EZA) (4) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (3) Sample Type Blood (1) Fluid (2) Serum or Plasma (1) Urine (2) Test Area Diagnostic Aids (6) Test Category Biomarkers (4) Electrolytes (2) Test Sub-Category Barbiturates (12) Other (5) (-) Small Molecule (6) Your search has returned no tests.