title: An elderly nursing home resident with unusual urine bag discoloration.
authors.affiliation: Department of Renal Medicine, Singapore General Hospital, Singapore.
authors.forename: M G
authors.initials: MG
authors.lastname: Zeier
authors.affiliation: Department of Renal Medicine, Singapore General Hospital, Singapore.
authors.forename: Kian-Guan
authors.initials: KG
authors.lastname: Lee
authors.affiliation: Department of Renal Medicine, Singapore General Hospital, Singapore.
authors.forename: Chieh-Suai
authors.initials: CS
authors.lastname: Tan
keywords: purple urine bag syndrome; urinary catheter; urinary tract infection