Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Colorimetry (C) (2) (-) Gas Chromatography (GC) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (4) (-) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (2) Sample Type Blood (2) Fluid (1) (-) RBCs (1) Serum or Plasma (2) Tissue (1) (-) Urine (2) Test Area Exposure (2) Therapeutics (1) Test Category Antihypertensives (1) Metals/Elements (2) Test Sub-Category Calcium Channel Blockers (1) Toxic Elements (2) Test Test Name 4765R Vanadium, RBCs 4765U Vanadium, Urine 4770U Verapamil, Urine