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) Benzodiazepines (2) Beta Blockers (2) CNS Stimulants (3) Diuretics (1) Hormones (2) (-) Hydrocarbons (1) Opiates/Opioids (9) Other (32) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (2) Test Test Name 2745B Methane, Blood