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 (11) (-) Anticholinergics (2) Antihistamines (3) Antihypertensives (3) Antimicrobials (3) Antipsychotics (4) Hypoglycemic Agents (2) Test Sub-Category Other (2) Test Test Name 2369B Hyoscyamine, Blood 2369SP Hyoscyamine, Serum/Plasma