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) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (1) Sample Type Blood (4) Fluid (1) Hair (1) Nails (1) RBCs (1) Serum or Plasma (4) Tissue (1) (-) Urine (2) Test Area Exposure (1) Therapeutics (1) Test Category Analgesics (3) Antianxiety (1) Antidepressants (4) Antihypertensives (1) (-) Metals/Elements (1) NPS/Designer Drugs (3) Opiate/Opioid Antagonists (3) (-) Sedative/Hypnotics (1) Solvents (3) Stimulants (2) Test Sub-Category Benzodiazepines (1) Other (1) Test Test Name 3140U Nickel, Urine 3175U Nitrazepam and Metabolite, Urine