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) (3) Gas Chromatography/Mass Spectrometry (GC/MS) (1) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (3) Sample Type (-) Blood (3) Serum or Plasma (4) Urine (2) Test Area Therapeutics (3) Test Category Antiepileptics/Antiseizures (1) Cholinesterase Inhibitors (1) Expectorants (1) Test Sub-Category Alpha-2 Adrenergic Agonists (1) Antivirals (1) (-) GABA Analogues (1) (-) Other (2) Sulfonylureas (1) Test Test Name 2143B Gabapentin, Blood 2148B Galantamine, Blood 2185B Guaifenesin, Blood