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 (-) Fluid (1) Hair (1) Stool (1) Test Area Exposure (1) Test Category Metals/Elements (1) Test Sub-Category Benzodiazepines (1) Beta Blockers (1) (-) Macrominerals (1) Opiates/Opioids (2) Other (3) Test Test Name 2551FL Magnesium - Total, Fluid