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 (10) Anesthetics (6) Antianxiety (3) Antiarrhythmics (3) Anticholinergics (7) Antidepressants (9) Antiepileptics/Antiseizures (2) Antihistamines (4) Antineoplastics (1) Antipsychotics (1) Antitussives/Cough Suppressants (3) Biomarkers (4) Depressants (11) Diuretics (2) (-) Electrolytes (2) Muscle Relaxants (4) Sedative/Hypnotics (9) Stimulants (3) Test Sub-Category Small Molecule (2) Test Test Name 0645FL Bicarbonate, Fluid 0645U Bicarbonate, Urine