Polystyrene sulfonate (Kayexalate) is used in renal failure to:
Reduce serum phosphate levels.
Prevent constipation from sorbitol use.
acts by pulling potassium into the bowels and exchanging it for sodium
acts by adding potassium into the bowels and exchanging it for sodium bicarbonate
The Correct Answer is C
Choice A rationale: Kayexalate is not primarily used for phosphate reduction.
Choice B rationale: Kayexalate can have sorbitol in its formulation, which might cause diarrhea rather than constipation.
Choice C rationale: Kayexalate works as a cation-exchange resin that promotes potassium excretion in the bowels.
Choice D rationale: Kayexalate does not add potassium; it exchanges sodium for potassium in the bowels.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale: These side effects are not related to spironolactone use.
Choice B rationale: These are common side effects of spironolactone, as it causes potassium retention and sodium loss.
Choice C rationale: These side effects are not related to spironolactone use.
Choice D rationale: These side effects are not related to spironolactone use.
Correct Answer is D
Explanation
Choice A rationale: An increase in serum lipid levels is associated with nephrotic syndrome, not recovery.
Choice B rationale: A decrease in blood pressure to normal might be beneficial but is not a definitive indicator of recovery from nephrotic syndrome.
Choice C rationale: Gain in body weight can occur due to fluid retention, which is a symptom of nephrotic syndrome, and doesn't indicate recovery.
Choice D rationale: The disappearance of protein from the urine is a sign of recovery in nephrotic syndrome.
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