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 (GC) (3) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (1) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (4) Sample Type Blood (3) Serum or Plasma (3) (-) Urine (4) Test Area Therapeutics (4) Test Category Analgesics (3) Antianxiety (1) (-) Antidepressants (1) Antihypertensives (1) NPS/Designer Drugs (2) (-) Opiate/Opioid Antagonists (3) Sedative/Hypnotics (1) Stimulants (3) Test Sub-Category Other (4) Test Test Name 3111U Naloxone - Total (Conjugated/Unconjugated), Urine 3113U Naloxone - Total (Conjugated/Unconjugated) Screen, Urine 3116U Naltrexone and Metabolite - Total (Conjugated/Unconjugated), Urine 3145U Nefazodone, Urine