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) (1) Gas Chromatography/Mass Spectrometry (GC/MS) (1) Sample Type Blood (1) (-) Fluid (2) Serum or Plasma (2) Urine (4) Test Area Diagnostic Aids (2) Test Category Analgesics (2) Anesthetics (1) Antianxiety (2) Anticholinergics (1) Anticoagulants (1) Antidepressants (3) Antiepileptics/Antiseizures (2) Antihypertensives (1) Antimicrobials (1) (-) Biomarkers (1) Bronchodilators (2) Depressants (5) (-) Electrolytes (1) Metals/Elements (7) Psychoactives (2) Solvents (1) Stimulants (4) Volatiles (1) Test Sub-Category Small Molecule (2) Test Test Name 0420FL Betahydroxybutyric Acid, Fluid 0645FL Bicarbonate, Fluid