Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (3) Inductively Coupled Plasma/Optical Emission Spectrometry (ICP/OES) (1) Sample Type Blood (9) Hair (2) Serum or Plasma (5) Stool (1) (-) Tissue (1) Urine (8) Test Area Test Category Test Sub-Category Test Test Name 1006TI Carbon Monoxide - Iron Ratio Profile, Tissue