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: Arterial blood gas (ABG) findings provide direct information about oxygenation and acid-base balance in the blood, which can indicate hypoxemia and metabolic acidosis.
Choice B rationale: Oxygen saturation level provides information about oxygen saturation in the blood but doesn't give a complete assessment of acid-base balance or other gases in the blood.
Choice C rationale: White blood cell differential assesses different types of white blood cells and is not directly related to evaluating hypoxemia or metabolic acidosis.
Choice D rationale: Red blood cells (RBCs) and hemoglobin count findings are important but do not directly assess hypoxemia or metabolic acidosis.
Correct Answer is D
Explanation
Choice A rationale: Metronidazole is not typically used to treat genital warts caused by HPV.
Choice B rationale: HPV can be transmitted through various forms of sexual contact, including oral sex.
Choice C rationale: Condoms reduce but do not eliminate the risk of HPV transmission. Choice D rationale: Genital warts caused by HPV increase the risk of cervical cancer,
necessitating regular Pap smears for monitoring and early detection.
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