CHAPTER 42 QUIZ 2

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Questions and Answers

Which of the following statements about Acute Kidney Injury (AKI) is correct?

  • AKI is never a serious complication for patients undergoing major surgery.
  • Supportive care with dialysis has increased mortality from AKI.
  • The mortality rate of mild AKI in the ICU is less than 10%.
  • AKI occurs in approximately 5-25% of all hospitalized patients. (correct)

Which of the following statements is true regarding the mortality rate associated with AKI?

  • The mortality rate in the ICU for AKI is less than 50%.
  • The mortality rate for AKI requiring dialysis after cardiac/major vascular surgery is low.
  • The mortality rate for AKI is not influenced by the severity of the condition.
  • The mortality rate of mild AKI ranges from 10-35%. (correct)

Which of the following statements accurately describes the definition of perioperative renal failure?

  • The definition of perioperative renal failure has evolved to consider small changes in serum creatinine and urine output (correct)
  • The definition of perioperative renal failure has not changed in recent years.
  • The implications of requiring postoperative dialysis are the same for patients with normal baseline renal function and those with advanced CKD.
  • Perioperative renal failure is defined as a requirement for postoperative dialysis only.

Which of the following statements is NOT a reason why the usefulness of dialysis alone to define AKI has been questioned?

<p>The criteria for the use of dialysis are standardized across different healthcare settings. (B)</p>
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Which of the following statements is true regarding the incidence of AKI requiring dialysis after cardiac/major vascular surgery?

<p>AKI requiring dialysis develops in 1-7% of patients after cardiac/major vascular surgery. (B)</p>
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Which of the following statements is true regarding the relationship between small changes in renal function and the risk of death?

<p>Small changes in renal function directly relate to an increased risk of death. (C)</p>
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Which of the following statements is true regarding the association between AKI and morbidity/mortality in the context of cardiac/major vascular surgery?

<p>AKI requiring dialysis after cardiac/major vascular surgery is strongly associated with morbidity and mortality in this context. (C)</p>
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What are the central components of the recent AKI criteria?

<p>Focus on both absolute and relative changes in creatinine, and definition of AKI severity (A)</p>
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What is the relationship between AKI stage and mortality rate?

<p>Higher AKI stage is associated with higher mortality rate (A)</p>
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What is the main limitation of using urine output (UO) criteria for defining AKI?

<p>All of the above (D)</p>
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What is the relationship between AKI defined by creatinine-based criteria and AKI defined by UO criteria?

<p>AKI defined by UO is more common (A)</p>
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What is the main purpose of the RIFLE, AKIN, and KDIGO AKI criteria?

<p>To provide a comprehensive approach for defining and staging AKI (B)</p>
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