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 (1) Serum or Plasma (1) (-) Urine (1) Test Area Therapeutics (2) Test Category Acids (2) Alcohols (1) Analgesics (6) (-) Anticholinergics (2) Antihistamines (2) Antihypertensives (2) Antimicrobials (2) Antipsychotics (2) Depressants (4) Hallucinogens (2) Herbicides (2) Hypoglycemic Agents (1) Solvents (2) Volatiles (4) Test Sub-Category Other (2) Test Test Name 2369B Hyoscyamine, Blood 2369U Hyoscyamine, Urine