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 (3) (-) Fluid (1) Hair (1) RBCs (1) Serum or Plasma (3) (-) Stool (1) Urine (1) Test Area Exposure (2) Test Category Metals/Elements (2) Test Sub-Category Antiarrhythmics (1) Antimalarials (1) Benzodiazepines (1) Beta Blockers (1) (-) Macrominerals (2) Metals/Elements (1) Non-Benzodiazepines (1) NSAIDs (2) Opiates/Opioids (2) Other (15) Selective Serotonin Reuptake Inhibitors (SSRI) (2) Toxic Elements (2) Trace Elements (1) Test Test Name 2551FL Magnesium - Total, Fluid 2551ST Magnesium - Total, Stool