Acute Renal Failure: Causes and Definitions

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Questions and Answers

What is the definition of acute renal failure?

  • A steady increase in serum blood urea nitrogen (BUN) or serum creatinine concentrations
  • An abrupt or rapid, reversible decline in renal function (correct)
  • A gradual and irreversible decline in renal function
  • A chronic kidney disease with no reversible decline in renal function

Which condition refers to a pathology within the kidney itself causing acute renal failure?

  • Prerenal acute renal failure
  • Acute intrinsic renal failure (correct)
  • Renal vasoconstriction
  • Disseminated Intravascular Coagulopathy

What is the most common cause of pre-renal acute renal failure?

  • Hemorrhage
  • Myocardial infarction
  • Renal vasoconstriction (correct)
  • Toxeamia of pregnancy

Which condition is NOT a cause of acute intrinsic renal failure?

<p>Toxeamia of pregnancy (C)</p> Signup and view all the answers

What is the cause of acute postrenal failure due to ureteric obstruction?

<p>Intraluminal: stone, clot (A)</p> Signup and view all the answers

Which disease is NOT associated with diseases of the tubules caused by hypoperfusion?

<p>Lymphoma (A)</p> Signup and view all the answers

During which phase of acute renal failure does the filtration rate remain so low that the creatinine and BUN continue to rise?

<p>Maintenance phase (B)</p> Signup and view all the answers

What is the recommended action during the Initiation Phase of acute renal failure?

<p>Evaluate for postrenal obstruction (C)</p> Signup and view all the answers

What is a characteristic of the Recovery Phase in acute renal failure?

<p>Regeneration of tubular epithelial cells (D)</p> Signup and view all the answers

What should be avoided in the management of acute renal failure to prevent intrinsic renal changes during the Initiation Phase?

<p>Removal of causative agents (A)</p> Signup and view all the answers

Which action is recommended during the Diuretic Phase of acute renal failure?

<p>Monitor for major fluid and electrolyte shifts (B)</p> Signup and view all the answers

What is a key consideration for the Management of Acute Renal Failure during the Maintenance Phase?

<p>Optimize protein and caloric intake (A)</p> Signup and view all the answers

Which condition may cause an abnormal diuresis and salt and water loss during the Recovery Phase of acute renal failure?

<p>Ureteral obstruction (C)</p> Signup and view all the answers

What is a recommended consideration for Volume Repletion before surgery in the Management of Acute Renal Failure?

<p>Increase sodium balance (D)</p> Signup and view all the answers

What should be monitored during the Diuretic Phase of acute renal failure to prevent complications?

<p>Major fluid and electrolyte shifts (B)</p> Signup and view all the answers

What is a key action in the Management of Acute Renal Failure during the Maintenance Phase to maintain water and sodium balance?

<p>Optimize protein and caloric intake (C)</p> Signup and view all the answers

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