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) (2) Sample Type Blood (2) Fluid (2) Serum or Plasma (2) (-) Urine (2) Test Area Diagnostic Aids (2) Test Category Biomarkers (1) Electrolytes (1) Test Sub-Category Alkaloids (1) Barbiturates (5) Benzodiazepines (2) Beta Blockers (1) Designer Benzodiazepines (1) Opiates/Opioids (4) Other (13) (-) Small Molecule (2) Solvents (1) Sympathomimetic Amines (1) Synthetic Cathinone (1) Toxic Elements (5) Test Test Name 0642U Betahydroxybutyric Acid, Urine 0645U Bicarbonate, Urine