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) (-) Urine (1) Test Area Therapeutics (2) Test Category Acids (2) Analgesics (3) (-) Antiarrhythmics (2) Antidepressants (6) Antiepileptics/Antiseizures (2) Antihistamines (2) Antihypertensives (2) Antimicrobials (1) Antipsychotics (1) Depressants (3) Metals/Elements (2) Other (2) Sedative/Hypnotics (2) Volatiles (1) Test Sub-Category Other (2) Test Test Name 2088B Flecainide, Blood 2088U Flecainide, Urine