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) (4) Gas Chromatography (GC) (2) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (2) Sample Type Blood (1) Fluid (1) Test Area Diagnostic Aids (2) Test Category Biomarkers (2) Test Sub-Category Alkaloids (6) Alkylating Agents (1) Anticoagulants (8) Antimalarials (1) Antipyretics (5) Antivirals (3) Avicides (2) Barbiturates (8) Benzodiazepines (7) Beta-2 Andrenergic Agonists (4) Beta Blockers (6) Calcium Channel Blockers (2) Cannabinoids (12) Carbamates (1) Carbonic Anhydrase Inhibitors (3) CNS Stimulants (4) Designer Benzodiazepines (3) Hallucinogens (6) Hemostatics (1) NSAIDs (2) Opiates/Opioids (18) Other (58) Serotonin-Norepinephrine Reuptake Inhibitors (SNRI) (3) (-) Small Molecule (2) Sympathomimetic Amines (3) Test Test Name 0420B Betahydroxybutyric Acid, Blood 0420FL Betahydroxybutyric Acid, Fluid