A nurse is caring for a client with chronic renal failure who is prescribed phosphate binders. What is the rationale for administering phosphate binders to this client?
To reduce calcium absorption and prevent kidney stone formation.
To decrease phosphate levels and prevent hyperphosphatemia.
To improve iron absorption and manage anemia.
To increase potassium excretion and prevent hyperkalemia.
The Correct Answer is B
A. Incorrect. Phosphate binders are not used to reduce calcium absorption. They are specifically prescribed to control phosphate levels in the blood.
B. Correct. Phosphate binders are medications that bind to dietary phosphorus in the digestive tract, preventing its absorption and reducing phosphate levels in the blood. This helps manage hyperphosphatemia, a common complication in chronic renal failure.
C. Incorrect. Phosphate binders do not improve iron absorption or manage anemia. They are not related to iron metabolism.
D. Incorrect. Phosphate binders do not affect potassium excretion. They are specific to phosphate control in the body and do not impact potassium levels.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Correct. Touching the dialysis catheter site increases the risk of infection, and clients receiving peritoneal dialysis must practice meticulous catheter care to minimize this risk.
B. Incorrect. While daily weight monitoring is essential for clients on peritoneal dialysis, it is not specifically related to peritoneal dialysis care.
C. Incorrect. Peritoneal dialysis is a home-based treatment, and the client performs the dialysis exchanges themselves. There is no need for frequent visits to the dialysis center.
D. Incorrect. Pain medication is not typically needed before starting a peritoneal dialysis exchange, as the procedure itself is not painful. Proper technique and sterile care are the main focus of peritoneal dialysis education.
Correct Answer is C
Explanation
A. Incorrect. Cardiovascular disease can impact kidney health. The heart and kidneys are closely connected, and conditions that affect the heart can also have implications for kidney function.
B. Incorrect. High cholesterol levels can contribute to cardiovascular disease, and cardiovascular disease is a significant risk factor for chronic renal failure. Therefore, high cholesterol indirectly impacts kidney health.
C. Correct. Cardiovascular disease, including conditions like heart failure or atherosclerosis, can lead to decreased blood flow to the kidneys, impairing kidney function and contributing to chronic renal failure.
D. Incorrect. High blood pressure is a well-established risk factor for chronic renal failure. Uncontrolled hypertension can damage the blood vessels in the kidneys, leading to kidney dysfunction over time.
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