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 Anesthetics (6) Antianxiety (3) Anticholinergics (4) Antidepressants (9) Antiepileptics/Antiseizures (2) Antihistamines (4) Antipsychotics (1) Antitussives/Cough Suppressants (3) Biomarkers (4) Diuretics (2) Drugs of Abuse (1) (-) Electrolytes (2) Muscle Relaxants (4) Plasticizers (2) Volatiles (6) Test Sub-Category (-) Small Molecule (2) Test Test Name 0645FL Bicarbonate, Fluid 0645U Bicarbonate, Urine