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 24 Hour Urine (4) Blood (18) Fluid (6) Hair (8) Liquid (4) Nails (6) RBCs (6) Serum or Plasma (20) (-) Stool (1) Tissue (5) Urine (18) Test Area Exposure (1) Test Category (-) Metals/Elements (1) Test Sub-Category Macrominerals (1) Test Test Name 2551ST Magnesium - Total, Stool