Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) (-) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (1) Sample Type (-) Blood (1) RBCs (1) Serum or Plasma (1) Urine (1) Test Area Exposure (1) Test Category Metals/Elements (1) Test Sub-Category (-) Macrominerals (1) Other (6) Toxic Elements (1) Trace Elements (2) Test Test Name 2551B Magnesium - Total, Blood