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 Analgesics (8) (-) Anticholinergics (2) Antihistamines (2) Antihypertensives (3) Antimicrobials (2) Antipsychotics (4) Depressants (4) Hallucinogens (2) Herbicides (2) Hypoglycemic Agents (2) Pesticides/Insecticides (1) Solvents (4) Volatiles (4) Test Sub-Category Other (2) Test Test Name 2369B Hyoscyamine, Blood 2369SP Hyoscyamine, Serum/Plasma