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 Antimicrobials (1) Test Sub-Category (-) Antibiotics (1) Antifungals (3) NSAIDs (7) Other (6) Tricyclic (8) Test Test Name 2440SP Isoniazid, Serum/Plasma