Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Colorimetry (C) (1) Gas Chromatography (GC) (7) Gas Chromatography/Mass Spectrometry (GC/MS) (3) Headspace Gas Chromatography (GC) (10) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (5) Sample Type Blood (1) Serum or Plasma (1) Urine (3) Test Area Drugs of Abuse (5) Test Category Acids (2) (-) Alcohols (1) Analgesics (24) Antianxiety (4) Anticholinergics (3) Antidepressants (4) Antidiabetics (8) Antidiarrheals (2) Antiemetics (2) Antiepileptics/Antiseizures (19) Antihistamines (10) Antihypertensives (13) Antimicrobials (23) Antineoplastics (1) Antipsychotics (9) Antitussives/Cough Suppressants (7) Carbonic Anhydrase Inhibitors (1) Cholinesterase Inhibitors (2) (-) Depressants (4) Diuretics (1) Drugs of Abuse (1) Emetics (4) Expectorants (3) Hallucinogens (10) Hydrocarbons (1) Immunosuppressants (5) Laxatives (1) Muscle Relaxants (11) NMDA Antagonists (2) NPS/Designer Drugs (3) Other (1) Retinoids (2) Sedative/Hypnotics (16) Stimulants (7) Volatiles (2) Test Sub-Category Benzodiazepines (1) Biomarkers (1) Opiates/Opioids (3) Test Test Name 2041U Flunitrazepam and Metabolites, Urine 2081U Ethyl Glucuronide, Urine 2276B Heroin Metabolites - Free (Unconjugated), Blood 2276SP Heroin Metabolites - Free (Unconjugated), Serum/Plasma 2276U Heroin Metabolites - Free (Unconjugated), Urine