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 Blood (2) Hair (1) Serum or Plasma (2) (-) Stool (1) Urine (3) Test Area Test Category Test Sub-Category Test Test Name 2551ST Magnesium - Total, Stool