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","D","F"]
Explanation
Choice A rationale: Altered consciousness is a hallmark feature of delirium, where individuals may experience fluctuations in awareness.
Choice B rationale: Delirium typically has an acute onset rather than symptoms developing over months to years.
Choice C rationale: Delirium often has a fluctuating course, rather than a consistent progressive decline.
Choice D rationale: Delirium can result from various factors including fluid/electrolyte imbalances or infections.
Choice E rationale: While these conditions might contribute to cognitive impairments, they are not typically associated with delirium.
Choice F rationale: Delirium can affect judgment, but it's not a defining feature.
Choice G rationale: While memory impairments can be seen in delirium, they're often accompanied by altered consciousness and fluctuations in awareness.
Correct Answer is {"dropdown-group-1":"A","dropdown-group-2":"D"}
Explanation
Choice A rationale: A three-point gait is used when one leg is weaker or injured and cannot bear weight. The client should place the crutches about 12 inches in front of the feet and lean forward on the crutches. Then, the client should lift the injured leg and
swing the body forward between the crutches, landing on the uninjured leg. The client should not put any weight on the injured ankle, as ordered by the physician.
Choice B rationale: A four-point gait is used when both legs can bear some weight, but one is weaker than the other.
Choice C rationale: A swing-through gait is used when both legs can bear weight, but need assistance with balance and coordination.
Choice D rationale: A two-point gait is used when both legs have equal strength and can bear full weight.
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