Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Gas Chromatography/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type (-) Blood (2) Fluid (1) Serum or Plasma (2) Urine (2) Test Area Diagnostic Aids (1) Therapeutics (1) Test Category Alcohols (1) Analgesics (3) Anesthetics (1) Antianxiety (1) (-) Antiarrhythmics (1) Anticholinergics (3) Antidepressants (4) Antiepileptics/Antiseizures (1) Antihistamines (2) Antithrombotics (1) Antitussives/Cough Suppressants (1) Benzodiazepines (1) (-) Biomarkers (1) Depressants (3) Diuretics (1) Metals/Elements (6) Muscle Relaxants (2) NPS/Designer Drugs (2) Other (1) Sedative/Hypnotics (6) Stimulants (1) Volatiles (3) Test Sub-Category Beta Blockers (1) Small Molecule (1) Test Test Name 0420B Betahydroxybutyric Acid, Blood 3227B Beta-Blockers Panel, Blood