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 Alcohols (5) Analgesics (5) Anesthetics (3) Antianxiety (3) Antiarrhythmics (4) Antidepressants (6) Antiepileptics/Antiseizures (3) Antineoplastics (2) Antipsychotics (1) (-) Gases (1) Hallucinogens (6) Herbicides (1) Pesticides/Insecticides (1) Sedative/Hypnotics (3) Solvents (3) Volatiles (8) Test Sub-Category Hydrocarbons (1) Test Test Name 2745B Methane, Blood