What is the role of renal imaging in the workup of acute kidney injury (AKI)?

Updated: Dec 24, 2020
  • Author: Biruh T Workeneh, MD, PhD, FASN; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Answer

In some cases, renal imaging is useful, especially if renal failure is secondary to obstruction. The American College of Radiology recommends ultrasonography, preferably with Doppler methods, as the most appropriate imaging method in AKI. [44]

In early AKI, a furosemide stress test can be performed to help determine the patient's prognosis. Low urinary output after the infusion of furosemide predicts the development of stage 3 AKI (see Furosemide Stress Testing, below). [45, 46]


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