Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Enzymatic Assay (EZA) (1) Gas Chromatography (GC) (16) Gas Chromatography/Mass Spectrometry (GC/MS) (2) Headspace Gas Chromatography (GC) (5) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (4) Sample Type Blood (1) Serum or Plasma (1) Urine (2) Test Area Drugs of Abuse (4) 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) Opiates/Opioids (3) Test Test Name 2041U Flunitrazepam and Metabolites, Urine 2276B Heroin Metabolites - Free (Unconjugated), Blood 2276SP Heroin Metabolites - Free (Unconjugated), Serum/Plasma 2276U Heroin Metabolites - Free (Unconjugated), Urine