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 (1) Fluid (1) Hair (1) RBCs (1) Serum or Plasma (1) (-) Stool (1) Urine (1) Test Area Exposure (1) Test Category Metals/Elements (1) Test Sub-Category CNS Stimulants (1) (-) Macrominerals (1) Opiates/Opioids (1) Other (1) Toxic Elements (2) Trace Elements (2) Test Test Name 2551ST Magnesium - Total, Stool