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) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type (-) Blood (2) Serum or Plasma (1) Urine (1) Test Area Exposure (1) Therapeutics (1) Test Category Gases (1) Sedative/Hypnotics (1) Test Sub-Category Alkaloids (1) Antibiotics (1) Antihistamines (1) Antimalarials (1) Barbiturates (1) Benzodiazepines (1) Beta Blockers (1) CNS Stimulants (2) Diuretics (1) Dopamine Antagonists (1) (-) Hormones (1) (-) Hydrocarbons (1) Insecticides (1) Macrominerals (1) Opiates/Opioids (10) Other (41) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (1) Tetracyclics (2) Toxic Elements (2) Trace Elements (3) Test Test Name 2604B Melatonin, Blood 2745B Methane, Blood