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) Sample Type Blood (1) Test Area Exposure (1) Test Category (-) Gases (1) Test Sub-Category Alpha-2 Adrenergic Agonists (3) Beta Blockers (3) Diuretics (7) (-) Hydrocarbons (1) Synthetic Cathinone (3) Vasodilators (1) Test Test Name 2745B Methane, Blood