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) (2) Sample Type Blood (2) Fluid (1) Serum or Plasma (2) Tissue (1) (-) Urine (2) Test Area Exposure (1) Therapeutics (1) Test Category Analgesics (3) Anticholinergics (2) Antidepressants (1) Antimigraines (1) Diagnostic Aids (1) NPS/Designer Drugs (3) Opiates/Opioids (1) (-) Pesticides/Insecticides (1) (-) Vasodilators (1) Volatiles (1) Test Sub-Category Other (2) Test Test Name 4197U Sildenafil and Metabolite, Urine 4215U Strychnine, Urine