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) (1) Sample Type Serum or Plasma (1) Test Area (-) Therapeutics (1) Test Category Anesthetics (1) Antiepileptics/Antiseizures (9) (-) Antimicrobials (1) Immunosuppressants (1) Sedative/Hypnotics (10) Test Sub-Category (-) Antibiotics (1) Test Test Name 1959SP Ethambutol, Serum/Plasma