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) (3) Enzyme-Linked Immunosorbent Assay (ELISA) (3) Gas Chromatography (GC) (1) Gas Chromatography/Mass Spectrometry (GC/MS) (3) Headspace Gas Chromatography (GC) (2) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (29) Fluid (7) Serum or Plasma (32) (-) Tissue (5) Urine (13) Test Area Postmortem (3) Therapeutics (2) Test Category Antihypertensives (2) Therapeutics (3) Test Sub-Category Beta Blockers (2) Other (3) Your search has returned no tests.