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) Barbiturates (20) Carboxylic Acids (3) Drug Facilitated Sexual Assault (3) (-) Hydrocarbons (1) Opiates/Opioids (7) Other (72) Selective Serotonin Reuptake Inhibitors (SSRI) (5) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (3) Small Molecule (2) Test Test Name 2745B Methane, Blood