title: A Case of Purple Urine Bag Syndrome in a Spastic Partial Quadriplegic Male.
abstract: Purple bag urine syndrome (PUBS) is a benign and unique phenomenon of the urine turning a deep violet color within the urinary catheter tubing and bag. This phenomenon is commonly encountered in patients indicated with long-term catheter placement or, in certain conditions like chronic constipation, alkaline urine, limited ambulation, and, in terms of gender distribution, the female sex, predominates. PUBS gets its name from a unique phenomenon that takes places inside the gut where tryptophan (an amino acid) is metabolized, producing blue and red hues which together emanate a deep violet color. Here, the case of a middle-aged male patient with a suprapubic catheter in situ, following trauma causing spastic partial quadriplegia, is being presented with PUBS due to UTI secondary to Proteus vulgaris. The risk factors, in this case, include chronic constipation and recurrent urinary tract infections (UTIs).​.
authors.affiliation: Department of Medicine, School of Medicine, University of Missouri Kansas City.
authors.forename: Sibghat
authors.initials: S
authors.lastname: Tul Llah
authors.affiliation: Department of Medicine, School of Medicine, University of Missouri Kansas City.
authors.forename: Salman
authors.initials: S
authors.lastname: Khan
authors.affiliation: Medical Education, Saint Luke's Hospital of Kansas City.
authors.forename: Atman
authors.initials: A
authors.lastname: Dave
authors.affiliation: Medical Education, Saint Luke's Hospital of Kansas City.
authors.forename: Amelia Jane A
authors.initials: AJ
authors.lastname: Morrison
authors.affiliation: Medical Education, Saint Luke's Hospital of Kansas City.
authors.forename: Swapna
authors.initials: S
authors.lastname: Jain
authors.affiliation: Department of Medicine, School of Medicine, University of Missouri Kansas City.
authors.forename: David
authors.initials: D
authors.lastname: Hermanns
keywords: purple urine; purple urine bag syndrome