Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Inductively Coupled Plasma/Optical Emission Spectrometry (ICP/OES) (1) Sample Type Blood (3) Fluid (2) Hair (3) Liquid (1) Nails (1) RBCs (3) Serum or Plasma (3) (-) Stool (1) Tissue (1) Urine (3) Test Area Exposure (1) Test Category Metals/Elements (1) Test Sub-Category (-) Macrominerals (1) Test Test Name 2551ST Magnesium - Total, Stool