Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) (-) Hematofluorometry (H) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (1) Test Area Exposure (1) Test Category Other (1) Test Sub-Category (-) Biomarkers (1) Opiates/Opioids (1) Other (3) Toxic Elements (3) Trace Elements (2) Test Test Name 4885B ZPP (Zinc Protoporphyrin), Blood