A nurse is caring for a client with acute renal failure who develops edema. What is the primary pathophysiological process that leads to edema in this client?
Decreased blood volume and hypovolemia.
Increased vascular permeability and leakage of fluid into tissues.
Impaired filtration and reduced excretion of fluid by the kidneys.
Excessive fluid intake and fluid overload.
The Correct Answer is C
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Incorrect. Increasing the rate of dialysis may further lower the client's blood pressure and worsen the situation.
B. Incorrect. Administering an antihypertensive medication during a hypotensive episode could exacerbate the client's low blood pressure.
C. Correct. The nurse's priority action is to stop the dialysis procedure immediately and notify the healthcare provider of the significant drop in blood pressure. The client may be experiencing a hypotensive episode, which requires prompt evaluation and intervention.
D. Incorrect. Increasing the client's
fluid intake is not appropriate during a hypotensive episode, as it may not rapidly improve blood pressure and could lead to fluid overload.
Correct Answer is C
Explanation
A. Incorrect. Muscle weakness and fatigue are manifestations of hyperkalemia, but they are not the most critical indicators of severe hyperkalemia.
B. Incorrect. Tingling sensations in the extremities are not the most critical indicator of severe hyperkalemia.
C. Correct. The most critical manifestation of severe hyperkalemia is an irregular heart rhythm (dysrhythmiA. , which can be life-threatening.
D. Incorrect. Excessive thirst and dry mucous membranes are not specific to hyperkalemia and are not the most critical indicators of severe hyperkalemia.
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