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 Drugs of Abuse (1) (-) Therapeutics (2) Test Category Analgesics (4) Anesthetics (1) Antianxiety (2) Antiarrhythmics (1) Anticholinergics (1) Antidepressants (4) Antidiabetics (1) Antiepileptics/Antiseizures (5) Antihistamines (2) Antihypertensives (3) Antimicrobials (3) Antipsychotics (1) Antitussives/Cough Suppressants (2) Expectorants (1) Laxatives (1) Mood Stabilizers (1) (-) Muscle Relaxants (2) Sedative/Hypnotics (5) Stimulants (1) Test Sub-Category Other (2) Test Test Name 2111U Baclofen, Urine 2720U Metaxalone, Urine