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 (-) Hydrocarbons (1) Parkinsons (1) Selective Serotonin Reuptake Inhibitors (SSRI) (9) Tetracyclics (3) Tricyclic (3) Test Test Name 2745B Methane, Blood