Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) (-) Gas Chromatography (GC) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type (-) Blood (1) Serum or Plasma (1) Urine (1) Test Area Therapeutics (1) Test Category Acids (1) Alcohols (1) Anesthetics (2) Antidepressants (3) Antiepileptics/Antiseizures (1) Antihistamines (1) Antihypertensives (1) Antimicrobials (1) Antiparkinsons (1) Antipsychotics (2) (-) Cholinesterase Inhibitors (1) Depressants (1) Other (1) Sedative/Hypnotics (1) Solvents (1) Terpenes (1) Volatiles (3) Test Sub-Category Other (1) Test Test Name 4038B Pyridostigmine, Blood