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) Sample Type Blood (1) (-) Fluid (1) Serum or Plasma (1) (-) Tissue (1) (-) Urine (1) Test Area Therapeutics (3) Test Category Antidepressants (4) Antiepileptics/Antiseizures (3) (-) Antihypertensives (3) Metals/Elements (1) Volatiles (1) Test Sub-Category Calcium Channel Blockers (3) Test Test Name 4770FL Verapamil, Fluid 4770TI Verapamil, Tissue 4770U Verapamil, Urine