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 Alkaloids (2) Antibiotics (1) Antihistamines (1) Antimalarials (1) Barbiturates (2) Benzodiazepines (2) Beta Blockers (2) CNS Stimulants (3) Diuretics (1) Dopamine Antagonists (2) Hormones (2) (-) Hydrocarbons (1) Insecticides (1) Macrominerals (2) Opiates/Opioids (17) Other (71) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (2) Tetracyclics (4) Toxic Elements (1) Trace Elements (4) Test Test Name 2745B Methane, Blood