Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Colorimetry (C) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (1) Sample Type Blood (5) Hair (1) Nails (1) RBCs (1) Serum or Plasma (6) (-) Urine (2) Test Area Test Category Test Sub-Category Test Test Name 4835U Zaleplon, Urine 4844U Zinc, Urine