Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (3) Fluid (2) Serum or Plasma (3) Tissue (1) (-) Urine (2) Test Area Therapeutics (2) Test Category Acids (3) Alcohols (2) Analgesics (3) Antianxiety (2) Anticholinergics (1) Antidepressants (2) Antidiabetics (1) Antiepileptics/Antiseizures (3) Antihistamines (2) Antihypertensives (3) Antimicrobials (3) Antitussives/Cough Suppressants (2) Depressants (2) Emetics (1) Expectorants (1) Hallucinogens (3) Hydrocarbons (1) Laxatives (1) (-) Muscle Relaxants (2) NPS/Designer Drugs (1) Sedative/Hypnotics (5) Stimulants (2) Volatiles (4) Test Sub-Category Other (2) Test Test Name 2111U Baclofen, Urine 2720U Metaxalone, Urine