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 (GC) (2) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (1) Test Area Therapeutics (1) Test Category Antidiabetics (4) Antiepileptics/Antiseizures (2) Antimicrobials (2) (-) Antineoplastics (1) Antipsychotics (3) Carbonic Anhydrase Inhibitors (1) Hallucinogens (6) Immunosuppressants (4) Muscle Relaxants (6) NMDA Antagonists (2) Solvents (1) Stimulants (6) Test Sub-Category (-) Other (1) Test Test Name 2665B Mercaptopurine and Metabolites, Blood