Renal pathophysiology · Physiology

Which feature differentiates acute kidney injury from chronic kidney disease?

  1. Reduced daily urine output
  2. Elevated serum creatinine on presentation
  3. Small shrunken kidneys on imaging
  4. Multiple coexisting electrolyte disturbances
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Correct answer: Small shrunken kidneys on imaging

Chronically diseased kidneys are often small and shrunken on imaging. AKI usually presents with normal-sized kidneys.

Difficulty: Medium Question 19 of 20

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