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) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (2) Fluid (2) Meconium (1) (-) Serum or Plasma (2) Umbilical Cord (1) Urine (2) Test Area Diagnostic Aids (1) Therapeutics (1) Test Category Alcohols (2) Analgesics (3) Anesthetics (1) Antianxiety (1) Antiarrhythmics (1) Anticholinergics (2) Antidepressants (2) Antiepileptics/Antiseizures (1) Antihistamines (1) Antineoplastics (1) Antipsychotics (1) Antithrombotics (2) Antitussives/Cough Suppressants (1) Benzodiazepines (1) (-) Biomarkers (1) Depressants (2) Diuretics (1) Metals/Elements (5) (-) Muscle Relaxants (1) NPS/Designer Drugs (2) Plasticizers (1) Sedative/Hypnotics (5) Stimulants (1) Test Sub-Category Other (1) Small Molecule (1) Test Test Name 0642SP Betahydroxybutyric Acid, Serum/Plasma 2111SP Baclofen, Serum/Plasma