Acute Kidney Failure

Acute Kidney Failure ( 49 Questions)

Question 10 :
A client with acute renal failure is found to have elevated blood urea nitrogen (BUN) and creatinine levels. What is the primary reason for the increase in these markers in acute renal failure?


Correct Answer: B

A) Incorrect. In acute renal failure, there is impaired filtration and excretion of waste products by the kidneys, not enhanced filtration.

B) Correct. Elevated BUN and creatinine levels in acute renal failure result from the kidneys' reduced ability to filter and excrete waste products, leading to their accumulation in the blood.

C) Incorrect. The liver produces waste products like ammonia, but elevated BUN and creatinine levels are primarily related to kidney dysfunction, not increased production by the liver.

D) Incorrect. Decreased reabsorption of waste products by the renal tubules can contribute to elevated levels, but the primary issue in acute renal failure is impaired filtration and excretion.


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