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Pathophysiology of Acute Renal Failure Video

ACLS Certification Association videos have been peer-reviewed for medical accuracy by the ACA medical review board.

Video at a Glance

  • While acute renal failure may cause acute kidney injury and vice-versa, they are not synonymous. Acute renal failure refers to the kidney’s failure to perform its normal functions.
  • The three causes of acute renal failure are pre-renal, post-renal, and intra-renal.
  • Pre-renal failure occurs when there’s a problem with blood flow to the nephrons. The main cause is decreased cardiac output and volume.
  • Post-renal failure occurs when there’s an obstruction beyond the nephron.
  • Intra-renal failure occurs when the nephrons are damaged, and some causes are glomerulonephritis and acute tubular necrosis.

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