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) Gas Chromatography/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (5) (-) Fluid (2) (-) Meconium (2) Serum or Plasma (5) Urine (6) Test Area Diagnostic Aids (2) Newborn Tox (1) Therapeutics (1) Test Category Analgesics (2) Biomarkers (1) Electrolytes (1) Test Sub-Category Barbiturates (2) Benzodiazepines (3) (-) Opiates/Opioids (2) Other (3) (-) Small Molecule (2) Test Test Name 0420FL Betahydroxybutyric Acid, Fluid 0645FL Bicarbonate, Fluid 0801ME Buprenorphine and Metabolite - Total (Conjugated/Unconjugated) (Qualitative), Meconium 4127ME Buprenorphine and Metabolite - Total (Qualitative), Meconium