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 (11) Blood (153) Fat (2) Fluid (22) Hair (22) Liquid (10) Nails (15) RBCs (23) Serum or Plasma (123) (-) Stool (2) Tissue (25) Urine (125) Test Area (-) Exposure (2) Therapeutics (1) Test Category Metals/Elements (2) Test Sub-Category Macrominerals (2) Test Test Name 2551ST Magnesium - Total, Stool 3765ST Phosphorus - Total, Stool