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) (2) Sample Type 24 Hour Urine (3) Blood (11) Fluid (4) Hair (5) Liquid (1) Nails (3) RBCs (6) Serum or Plasma (9) (-) Stool (2) Tissue (1) Urine (15) Test Area Exposure (2) Test Category Laxatives (1) (-) Metals/Elements (2) Test Sub-Category (-) Macrominerals (2) Test Test Name 2551ST Magnesium - Total, Stool 3765ST Phosphorus - Total, Stool