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 (GC) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (5) (-) Spectrophotometry (SP) (1) Sample Type Serum or Plasma (1) Test Area Therapeutics (1) Test Category Antimicrobials (1) Test Sub-Category (-) Antibiotics (1) Other (2) Test Test Name 4245SP Sulfonamides, Undifferentiated, Serum/Plasma