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) Inductively Coupled Plasma/Optical Emission Spectrometry (ICP/OES) (1) Sample Type 24 Hour Urine (1) Blood (10) Hair (2) (-) Nails (1) RBCs (3) Serum or Plasma (13) Urine (12) Test Area Test Category Test Sub-Category Test Test Name 4370N Thallium, Nails