76-Year-Old Man With Purple Urine (techyum ::)

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76-Year-Old Man With Purple Urine

You encounter some fascinating stuff reading the New England Journal of Medicine. Take NEJM's Image of the Week this week -- yes, yes in fact that is a bag of purple urine. Since you asked:

Purple discoloration can occur in alkaline urine as a result of the degradation of indoxyl sulfate (indican), a metabolite of dietary tryptophan, into indigo (which is blue) and indirubin (which is red) by bacteria such as Providencia stuartii, Klebsiella pneumoniae, P. aeruginosa, Escherichia coli, and enterococcus species. The clinical course is benign, and the urine typically clears with resolution of the bacteriuria and acidification of the urine.

Who knew?

Link and image via NEJM.

Posted by thomas on September 29, 2007 10:21 PM | :body hacks :hardcore nerdiness :mutants :science

Comments (1)

Paulj:

This looks similar to Porphyria, which is what Mad King George III is believed to have suffered from.

Posted by Paulj | September 30, 2007 1:57 AM

Posted on September 30, 2007 01:57

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