Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Enzyme-Linked Immunosorbent Assay (ELISA) (1) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (1) Sample Type Blood (81) Fluid (13) (-) Hair (1) Meconium (1) Oral Fluid (Saliva) (1) (-) RBCs (1) Serum or Plasma (70) Stool (1) Tissue (11) Urine (45) Test Area Drugs of Abuse (1) Exposure (1) Test Category Hallucinogens (1) Metals/Elements (1) Test Sub-Category Macrominerals (1) Other (1) Test Test Name 3784R Potassium - Total, RBCs 6925H Phencyclidine Screen, Hair