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) (1) Sample Type (-) Blood (1) Test Area (-) Therapeutics (1) Test Category Anesthetics (2) Antianxiety (1) Antiarrhythmics (1) Anticholinergics (1) Antidiabetics (1) Antidiarrheals (1) Antiepileptics/Antiseizures (8) Antihistamines (3) (-) Antineoplastics (1) Antipsychotics (5) Antithyroids (1) Antitussives/Cough Suppressants (2) Cholinesterase Inhibitors (1) Expectorants (1) Immunosuppressants (3) Muscle Relaxants (3) NMDA Antagonists (1) Sedative/Hypnotics (4) Test Sub-Category (-) Other (1) Test Test Name 2665B Mercaptopurine and Metabolites, Blood