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 (17) Anesthetics (1) Antacids (2) Antianxiety (2) Antiarrhythmics (2) Antidepressants (6) Antidiabetics (2) Antiemetics (1) Antiepileptics/Antiseizures (3) Antihypertensives (3) Antimicrobials (2) Antineoplastics (2) Antipsychotics (2) Antithyroids (1) Biomarkers (1) (-) Gases (1) Hallucinogens (10) Immunosuppressants (2) Metals/Elements (18) Muscle Relaxants (3) NMDA Antagonists (1) NPS/Designer Drugs (2) Pesticides/Insecticides (3) Sedative/Hypnotics (6) Solvents (5) Stimulants (8) Volatiles (11) Test Sub-Category Hydrocarbons (1) Test Test Name 2745B Methane, Blood