Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Colorimetry (C) (1) Gas Chromatography/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (3) Serum or Plasma (3) (-) Urine (3) Test Area Exposure (1) Therapeutics (2) Test Category (-) Acids (1) Analgesics (1) (-) Antiarrhythmics (1) Antidepressants (3) (-) Antihypertensives (1) Depressants (2) Metals/Elements (1) Other (1) Sedative/Hypnotics (1) Test Sub-Category Carboxylic Acids (1) Diuretics (1) Other (1) Test Test Name 2088U Flecainide, Urine 2134U Formic Acid, Urine 2140U Furosemide, Urine