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 Antihypertensives (3) Test Sub-Category (-) Calcium Channel Blockers (3) Other (4) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (4) Toxic Elements (1) Test Test Name 4770FL Verapamil, Fluid 4770TI Verapamil, Tissue 4770U Verapamil, Urine