A nurse is assessing a client at risk for postrenal acute renal failure. What condition should the nurse prioritize in the client's assessment?

A. Incorrect. Decreased blood volume and hypovolemia may contribute to prerenal acute renal failure, but they are not the primary pathophysiological processes that lead to edema in acute renal failure.

B. Incorrect. Increased vascular permeability and leakage of fluid into tissues are not the primary mechanisms of edema in acute renal failure.

C. Correct. In acute renal failure, the impaired filtration and reduced excretion of fluid by the kidneys lead to fluid retention and edema in various parts of the body.

D. Incorrect. Excessive fluid intake and fluid overload may contribute to fluid retention and edema in prerenal acute renal failure, but they are not the primary pathophysiological process in acute renal failure.

A. Correct. Bananas and oranges are high-potassium fruits that the client should avoid on a potassium-restricted diet.

B. Incorrect. Bread and pasta are not typically high in potassium and are usually acceptable in a potassium-restricted diet.

C. Incorrect. Eggs and cheese are not significant sources of potassium and are usually allowed in a potassium-restricted diet.

D. Incorrect. Chicken and fish are sources of protein and do not have high potassium content that would require restriction in most cases.