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) (6) Gas Chromatography/Mass Spectrometry (GC/MS) (7) Headspace Gas Chromatography (GC) (5) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Blood (1) Test Area Therapeutics (1) Test Category Analgesics (17) Antidepressants (3) Antidiabetics (4) Antiemetics (3) Antiepileptics/Antiseizures (2) Antihypertensives (6) Antimicrobials (4) (-) Antineoplastics (1) Antipsychotics (3) Carbonic Anhydrase Inhibitors (1) Drugs of Abuse (2) Hallucinogens (6) Immunosuppressants (4) Muscle Relaxants (6) NMDA Antagonists (2) NPS/Designer Drugs (3) Sedative/Hypnotics (7) Solvents (1) Stimulants (11) Test Sub-Category Other (1) Test Test Name 2665B Mercaptopurine and Metabolites, Blood