What is the role of ultrasonography in the workup of acute tubular necrosis (ATN)?

Updated: Mar 15, 2021
  • Author: Sangeeta Mutnuri, MBBS; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Renal ultrasonography, preferably with Doppler methods, is a simple procedure that should be undertaken in all patients who present with AKI. [17] It is extremely useful to exclude obstructive uropathy and to measure kidney size and cortical thickness. According to The Renal Association (United Kingdom) 2019 guideline, all patients presenting with AKI should have baseline investigations performed, including a urinalysis and a renal tract ultrasound, within 24 hours (unless a clear cause of AKI is apparent or AKI is improving), and within 6 hours if pyonephrosis is suspected or there is a high index of suspicion for urinary tract obstruction. [7]


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