Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) (-) Enzymatic Assay (EZA) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Serum or Plasma (1) Test Area Exposure (1) Test Category Analgesics (4) Anesthetics (2) Antacids (5) Antiarrhythmics (3) Antihistamines (2) (-) Other (1) Sedative/Hypnotics (3) Solvents (2) Test Sub-Category Other (1) Test Test Name 3250SP Oxalate, Serum/Plasma