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/Mass Spectrometry (ICP/MS) (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 Alkaloids (1) Barbiturates (1) Benzodiazepines (1) Beta Blockers (1) CNS Stimulants (2) Dopamine Antagonists (1) Hormones (1) (-) Macrominerals (1) Opiates/Opioids (9) Other (31) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (1) Tetracyclics (2) Toxic Elements (1) Trace Elements (3) Test Test Name 2551U Magnesium - Total, Urine