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 Blood (12) Fluid (2) Hair (2) Meconium (2) Serum or Plasma (20) (-) Tissue (1) Urine (7) Test Area Test Category Test Sub-Category Test Test Name 1615TI Digoxin, Tissue