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 Fluid (1) Urine (1) Test Area Diagnostic Aids (2) Test Category Analgesics (2) Biomarkers (2) Depressants (4) (-) Electrolytes (2) Sedative/Hypnotics (3) Test Sub-Category Small Molecule (2) Test Test Name 0645FL Bicarbonate, Fluid 0645U Bicarbonate, Urine