Post renal failure (obstructive failure) can account for up to 15% of acute renal failure. POCUS can be used in the acute setting to determine if obstruction is contributing to an acute episode of renal failure. In this video the causes of unilateral and bilateral obstruction, including the degrees of hydronephrosis, will be reviewed.

Implementation of POCUS can lead to early discovery of obstructive uropathy in the patient with acute renal failure and can guide appropriate therapy.

Check out these other videos on Renal Ultrasound:
Basic Renal Ultrasound    • POCUS   Basic Renal Ultrasound  
UVJ stone with hydronephrosis    • Ureterolithiasis at the Ureterovesica...  
Urinary retention with severe hydronephrosis    • Urinary Retention with Bilateral Seve...  

References:
Podoll, A., Walther, C. & Finkel, K. Clinical utility of gray scale renal ultrasound in acute kidney injury. BMC Nephrol 14, 188 (2013). https://doi.org/10.1186/1471236914188

Faubel S, Patel NU, Lockhart ME, Cadnapaphornchai MA. Renal relevant radiology: use of ultrasonography in patients with AKI. Clin J Am Soc Nephrol. 2014 Feb;9(2):38294. doi: 10.2215/CJN.04840513. Epub 2013 Nov 14. PMID: 24235286; PMCID: PMC3913238.

Gamss R, Stein MW, Rispoli JM, Cohen HW, Roberts JH, Koenigsberg M, Mazzariol FS. What Is the Appropriate Use of Renal Sonography in an InnerCity Population With NewOnset Acute Kidney Injury? J Ultrasound Med. 2015 Sep;34(9):163944. doi: 10.7863/ultra.15.14.04026. Epub 2015 Aug 17. PMID: 26283754; PMCID: PMC5310182.