Renal pathophysiology · Physiology

Postrenal acute kidney injury results from:

  1. Immune-mediated glomerular inflammation
  2. Reduced cardiac output and renal hypoperfusion
  3. Obstruction to urine flow
  4. Ischemic tubular injury
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Correct answer: Obstruction to urine flow

Postrenal AKI occurs due to obstruction of urine flow at any level of the urinary tract. This leads to increased tubular pressure and reduced GFR.

Difficulty: Medium Question 5 of 20

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