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What is the rational for administering calcium carbonate to a client with chronic renal failure?

A.

Decreases the chance of peptic ulcer formation

B.

Prevents constipation.

C.

increases the tubular excretion of potassium

D.

To lower phosphorus level

Answer and Explanation

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).


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Related Questions

Correct Answer is {"dropdown-group-1":"A","dropdown-group-2":"C"}

Explanation

Respiratory acidosis- Due to opioid-induced respiratory depression (hypoventilation, CO₂ retention). Hypervolemia: IVF at 150ml/hr is a relatively high rate for someone with CHF. Even isotonic fluids like 0.9% sodium chloride can accumulate quickly and worsen cardiac workload.

Incorrect answers:

  • Metabolic alkalosis: typically occurs due to vomiting or excessive bicarbonate intake.
  • Osteomyelitis: Infection of the bone; not a direct risk in this scenario.

Correct Answer is C

Explanation

A. "I can’t wait to start back to work next week, I really need the money." Returning to work too soon increases the risk of infection and complications. Clients should follow their provider's recommendations.

B. "I will follow my 1,500 mL fluid restriction." After a kidney transplant, patients typically need increased fluid intake to maintain kidney perfusion, not restriction.

C. "I will take my temperature and if it is above 101°F, I will call my doctor." Fever >101°F (38.3°C) is an early sign of infection or organ rejection. Prompt medical attention is required.

D. "I am glad I won't have to keep track of how much I urinate in the day." Clients must monitor urine output to detect signs of kidney rejection or dysfunction.

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