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 (2) Blood (11) Fluid (4) Hair (8) Liquid (2) Nails (5) RBCs (6) Serum or Plasma (11) (-) Stool (1) Tissue (3) Urine (10) Test Area Exposure (1) Test Category (-) Metals/Elements (1) Test Sub-Category Macrominerals (1) Test Test Name 2551ST Magnesium - Total, Stool