Monday, January 10, 2011


Whoa, this came out of a Foley catheter.

Challenge: What's going on?


Anonymous said...

Is it a dye ??

I follow up ur cases But usually I don't know most of its keys as I'm a new medical student>>>>>>

please , always leave the answer even if there is no comments

Thank you

Craig Chen said...

haha - yes, isn't that weird? it's sort of like a dye

This is purple urine bag syndrome. GI flora break down amino acide tryptophan into indole which is absorbed in the portal circulation and converted to indoxyl sulfate. This is excreted in the urine where it can be broken down to indoxyl if an alkaline environment and certain bacteria (Providencia spp, Klebsiella, Proteus) are present. The breakdown products indigo and indirubin appear blue and red. This is a benign condition but may signify a urinary tract infection.

Sources: UpToDate;