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) Sample Type Blood (1) Fluid (1) (-) Serum or Plasma (1) Tissue (1) Urine (1) Test Area Therapeutics (1) Test Category Antidepressants (3) Antiepileptics/Antiseizures (4) (-) Antihypertensives (1) Antimicrobials (2) Metals/Elements (2) Other (1) Vasodilators (1) Test Sub-Category Calcium Channel Blockers (1) Test Test Name 4770SP Verapamil, Serum/Plasma