What is the rational for administering calcium carbonate to a client with chronic renal failure?
Decreases the chance of peptic ulcer formation
Prevents constipation.
increases the tubular excretion of potassium
To lower phosphorus level
The Correct Answer is D
A. Decreases the chance of peptic ulcer formation: Calcium carbonate is not an antiulcer medication.
B. Prevents constipation: Calcium carbonate can cause constipation, not prevent it.
C. Increases the tubular excretion of potassium: Calcium carbonate does not directly affect potassium excretion.
D. To lower phosphorus levels: Calcium carbonate is a phosphate binder that reduces phosphorus absorption from food. In chronic renal failure, phosphorus builds up due to decreased kidney excretion, leading to secondary hyperparathyroidism and bone disease (renal osteodystrophy).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. "The microwave in my kitchen can warm the solution before I use it." Heating dialysis fluid in a microwave is dangerous as it can cause uneven heating and burns inside the peritoneal cavity. Dialysis solutions should be warmed using a heating pad or a specialized warmer.
B. "The fluid from my abdomen will be clear or slightly yellow." Normal peritoneal dialysis effluent should be clear. Cloudy effluent indicates infection (peritonitis).
C. "The catheter can become infected even with sterile precautions." Peritoneal dialysis catheters have a high risk of infection, even with proper care.
D. "The volume of the output solution should be greater than the input solution." More fluid should come out than goes in, as excess fluid and toxins are being removed.
Correct Answer is B
Explanation
A. Discard the client's last void at the end of the collection time period. The last void must be included for complete data.
B. Refrigerate the urine during the collection time period: Refrigerating the urine prevents bacterial growth and chemical breakdown, ensuring accurate lab results. Some tests may require urine to be kept on ice instead.
C. Save the first void at the start of the collection time period. The first void is discarded because it may contain residual metabolites from the previous period.
D. Include toilet paper with the collected urine. Toilet paper can contaminate the sample and alter test results.
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