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: After visual inspection, the next step typically involves auscultation, which allows the nurse to listen for bowel sounds and gather information about
gastrointestinal function.
Choice B rationale: Percussion involves tapping the abdomen to assess density or abnormal masses but usually follows auscultation.
Choice C rationale: Palpation, both light and deep, follows percussion in the sequence of an abdominal examination.
Choice D rationale: Similar to light palpation, deep palpation follows auscultation and percussion in the sequence of an abdominal examination.
Correct Answer is A
Explanation
Choice A rationale: Cri du chat syndrome involves a high-pitched cry in infants and other distinct physical and developmental features, but it doesn't present with the described symptoms.
Choice B rationale: Klinefelter syndrome, characterized by an extra X chromosome (XXY) in males, typically presents with small testicles, gynecomastia (enlarged breast tissues), sexual dysfunction, and altered body proportions, such as long legs and a shorter trunk, aligning with the client's symptoms.
Choice C rationale: Patau syndrome (Trisomy 13) manifests with severe developmental issues, facial abnormalities, and other physical malformations, but the described symptoms are not typically associated with this syndrome.
Choice D rationale: Turner syndrome involves females with a missing or partially missing X chromosome (45, X), resulting in specific physical features and medical problems not consistent with the described symptoms in a male client.

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