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) Sample Type 24 Hour Urine (3) Blood (8) Hair (4) Nails (2) RBCs (5) Serum or Plasma (8) Urine (10) Test Area Test Category Test Sub-Category Your search has returned no tests.