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 (21) Fluid (7) Hair (8) Liquid (5) Nails (6) RBCs (6) Serum or Plasma (21) (-) Stool (1) Tissue (6) Urine (21) Test Area Exposure (1) Test Category (-) Metals/Elements (1) Test Sub-Category Macrominerals (1) Test Test Name 2551ST Magnesium - Total, Stool