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How did this happen? BD ...

Posted Nov 10 2008 4:23pm

  How did this happen?  BD

Over the next 3 days, the urine gradually became yellow and clear, in the absence of antibiotic treatment. 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.

NEJM -- Purple Urine

Hat Tip:  Kevin, MD

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