Nephrology Book

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Acute Renal Failure Prognosis

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  1. Prognostic factor: Serum Creatinine Increase
    1. Serum Creatinine >= 3 mg/dl
      1. Mortality: 64%
    2. Serum Creatinine < 2mg/dl and non-oliguric
      1. Mortality: 5-20%
  2. Prognostic Factor: Oliguric ATN requiring dialysis
    1. Mortality: 50%
    2. Worse prognostic factors
      1. APACHE II score <25
      2. Serious comorbid condition
  3. Prognostic Factor: Multiple Organ Failure
    1. Mortality: 30% per organ system that fails
    2. Specific organ related risks
      1. Respiratory failure: 8 fold increased mortality
      2. Liver disease: 2-3 fold increased mortality
      3. Catabolic state: 2 fold increased mortality
      4. Heart disease: 3-4 fold increased mortality
  4. Non-Prognostic Factors (Factors not related to mortality)
    1. Advanced age
    2. Admission Serum Creatinine
    3. Number of prior episodes of renal insufficiency

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