Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Enzyme-Linked Immunosorbent Assay (ELISA) (1) (-) Gas Chromatography (GC) (2) Gas Chromatography/Mass Spectrometry (GC/MS) (1) Gas Chromatography/Tandem Mass Spectrometry (GC-MS/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (9) Sample Type Blood (2) (-) Serum or Plasma (2) Urine (2) Test Area Therapeutics (2) Test Category (-) Analgesics (2) Antiarrhythmics (1) Anticholinergics (1) Antidepressants (3) Antiepileptics/Antiseizures (2) Antineoplastics (1) Herbicides (1) Muscle Relaxants (1) Pesticides/Insecticides (2) Vasodilators (1) Volatiles (3) Test Sub-Category Opiates/Opioids (1) Other (1) Test Test Name 3400SP Pentazocine, Serum/Plasma 3525SP Phenazopyridine, Serum/Plasma