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JAMA Clinical Challenge |

Purple Urine

Eli Ben-Chetrit, MD; Gabriel Munter, MD
JAMA. 2012;307(2):193-194. doi:10.1001/jama.2011.1997.
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An elderly frail woman with dementia was admitted to the internal medicine service because of malfunction of her percutaneous gastrostomy tube. The patient had a history of recurrent hospitalizations for pneumonia and urinary tract infections. She had a permanent indwelling urinary catheter because of repeated episodes of urinary retention. The gastrostomy tube was replaced.

During admission a nurse noticed that the color of the urine was purple (Figure 1). A urine dipstick analysis revealed +2 leukocytes, +1 red blood cells, positive nitrites, and a urinary pH of 8.2.

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Figure 1. Patient urine on admission.

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Figure 2. Patient urine after treatment.

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References

May 9, 2012
Hyuk Ga, MD, PhD; Taro Kojima, MD
JAMA. 2012;307(18):1912-1913. doi:10.1001/jama.2012.3540.
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