What is the role of f indigo carmine or methylene blue in the intraoperative workup of ureteral injury?

Updated: Nov 12, 2020
  • Author: Sandip P Vasavada, MD; Chief Editor: Bradley Fields Schwartz, DO, FACS  more...
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If one is unsure whether a ureteral injury has occurred intraoperatively, intravenous administration of 10 mL of indigo carmine or methylene blue with 20 mg of furosemide may help to localize a ureteral injury. Extravasation of blue dye indicates ureteral discontinuity.

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