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 (55) Hair (4) Meconium (1) Nails (2) (-) Plasma (1) RBCs (5) Serum or Plasma (66) Tissue (2) Urine (49) Test Area Test Category Test Sub-Category Test Test Name 0560P Benzocaine, Plasma