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) (3) Sample Type Blood (5) Fluid (3) (-) Hair (1) Nails (1) (-) RBCs (2) Serum or Plasma (4) Stool (1) Tissue (1) Urine (3) Test Area Exposure (3) Test Category Metals/Elements (3) Test Sub-Category (-) Macrominerals (1) Other (1) (-) Toxic Elements (2) Trace Elements (2) Test Test Name 3140H Nickel, Hair 3140R Nickel, RBCs 3784R Potassium - Total, RBCs