Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Gas Chromatography/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type (-) Blood (2) Serum or Plasma (1) Tissue (1) Test Area Therapeutics (2) Test Category (-) Anesthetics (1) Antidepressants (1) (-) Antidiabetics (1) Industrial/Environmental Toxins (1) NPS/Designer Drugs (3) Opiate/Opioid Antagonists (2) Stimulants (2) Vasodilators (1) Test Sub-Category (-) Other (2) Test Test Name 3118B Nateglinide, Blood 3214B Nitrous Oxide, Blood