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 (49) Fluid (16) Hair (22) Liquid (10) Nails (15) RBCs (23) Serum or Plasma (51) (-) Stool (2) Tissue (12) Urine (53) 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