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 (1) Fluid (2) Meconium (3) Serum or Plasma (1) Umbilical Cord (1) (-) Urine (2) Test Area (-) Diagnostic Aids (2) Drugs of Abuse (5) Exposure (10) Therapeutics (20) Test Category Biomarkers (1) Electrolytes (1) Test Sub-Category Small Molecule (2) Test Test Name 0642U Betahydroxybutyric Acid, Urine 0645U Bicarbonate, Urine