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 Blood (1) (-) Fluid (1) Hair (1) RBCs (1) Serum or Plasma (1) (-) Stool (1) Urine (1) Test Area Exposure (2) Test Category Metals/Elements (2) Test Sub-Category Macrominerals (2) Test Test Name 2551FL Magnesium - Total, Fluid 2551ST Magnesium - Total, Stool