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) (2) Sample Type Blood (1) Fluid (1) Hair (1) RBCs (1) (-) Serum or Plasma (1) Stool (1) (-) Urine (1) Test Area Exposure (2) Test Category Metals/Elements (2) Test Sub-Category Alkaloids (2) Antibiotics (1) Antihistamines (2) Antimalarials (1) Barbiturates (2) Benzodiazepines (2) Beta Blockers (2) CNS Stimulants (3) Diuretics (1) Dopamine Antagonists (2) Hormones (2) (-) Macrominerals (2) Opiates/Opioids (17) Other (69) Phenothiazines (1) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (2) Tetracyclics (4) Toxic Elements (1) Trace Elements (4) Test Test Name 2551SP Magnesium - Total, Serum/Plasma 2551U Magnesium - Total, Urine