Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (1) Serum or Plasma (1) Test Area Therapeutics (2) Test Category Acids (3) Antiarrhythmics (3) Antiepileptics/Antiseizures (4) (-) Antihistamines (2) Antipsychotics (2) Depressants (5) Metals/Elements (1) Other (2) Sedative/Hypnotics (3) Volatiles (2) Test Sub-Category H2 Antagonists (1) (-) Other (2) Test Test Name 2073B Fexofenadine, Blood 2073SP Fexofenadine, Serum/Plasma