Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (4) Sample Type Blood (4) Fluid (1) (-) Serum or Plasma (4) Tissue (1) Urine (5) Test Area Drugs of Abuse (2) Therapeutics (2) Test Category Antidepressants (1) Antidiabetics (1) Industrial/Environmental Toxins (1) NPS/Designer Drugs (1) (-) Opiate/Opioid Antagonists (2) Other (1) (-) Stimulants (2) Therapeutics (1) Vasodilators (1) Test Sub-Category (-) Other (4) Test Test Name 3111SP Naloxone - Free (Unconjugated), Serum/Plasma 3116SP Naltrexone and Metabolite - Free (Unconjugated), Serum/Plasma 3150SP Nicotine and Metabolite, Serum/Plasma 9404SP Nicotine and Metabolite Screen, Serum/Plasma