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 (GC) (1) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (1) Sample Type Blood (1) Test Area Exposure (1) Test Category Gases (1) Test Sub-Category Alcohols (1) Carboxylic Acids (3) Drug Facilitated Sexual Assault (3) (-) Hydrocarbons (1) Other (28) Test Test Name 2745B Methane, Blood