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 A
Explanation
Choice A rationale: This statement could indicate that the client is receiving too much dose of the medication, which can cause hyperthyroidism. Hyperthyroidism is a condition where the thyroid gland produces too much thyroid hormone, which can speed up the body's metabolism and cause symptoms such as tremors, nervousness, weight loss, increased heart rate, and heat intolerance.
Choice B rationale: More frequent bowel movements could be a normal effect of the medication, as levothyroxine can improve constipation that is often associated with hypothyroidism.
Choice C rationale: The ability to enjoy cold weather might suggest improved tolerance to cold, which would align with normalized thyroid function.
Choice D rationale: This could be a sign of improved well-being and quality of life due to the medication, as levothyroxine can improve fatigue and depression that are often associated with hypothyroidism.
Correct Answer is D
Explanation
Choice A rationale: This is a possible sign of TBI but is not necessarily indicative of a life- threatening condition.
Choice B rationale: This is a possible sign of TBI but is not necessarily indicative of a life- threatening condition.
Choice C rationale: This is a possible sign of TBI but is not necessarily indicative of a life- threatening condition.
Choice D rationale: Serosanguineous nasal drainage (a mixture of blood and clear fluid) may suggest a basilar skull fracture, which is a fracture of the base of the skull that can damage vital structures such as the brainstem, cranial nerves, or major blood vessels. This can lead to serious complications such as meningitis, cerebrospinal fluid leak, or hemorrhage.
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