title: Elderly woman with orange urine and purple hands.
authors.affiliation: Department of Internal Medicine and Pulmonary and Critical Care Medicine, Southern Illinois University School of Medicine, Springfield, USA.
authors.forename: Nishith K
authors.initials: NK
authors.lastname: Singh
authors.forename: Nureain
authors.initials: N
authors.lastname: Mirza
mesh_terms: D000368:Aged; D003116:Color; D004791:Enzyme Inhibitors / Q000008:administration & dosage; D005260:Female; D005500:Follow-Up Studies; D006225:Hand; D006801:Humans; D007275:Injections, Intravenous; D008706:Methemoglobin / Q000378:metabolism; D008708:Methemoglobinemia / Q000139:chemically induced* / Q000188:drug therapy / Q000378:metabolism; D008751:Methylene Blue / Q000008:administration & dosage; D010621:Phenazopyridine / Q000009:adverse effects* / Q000627:therapeutic use; D016482:Urinalysis; D014552:Urinary Tract Infections / Q000188:drug therapy / Q000378:metabolism
chemical_list: D004791:Enzyme Inhibitors; D008706:Methemoglobin; D010621:Phenazopyridine; D008751:Methylene Blue