The nurse is preparing to administer sodium polystyrene sulfonate (Kayexalate) rectally to a patient with an irregular pulse and weakness of the lower extremities.
What laboratory finding does the nurse determine is the reason for this treatment?
Hypokalemia.
Hyperkalemia.
Hyponatremia.
Hypocalcemia.
The Correct Answer is B
Choice A rationale
Hypokalemia involves low potassium levels and is not treated with sodium polystyrene sulfonate. This drug is used to treat elevated potassium levels.
Choice B rationale
Hyperkalemia indicates high potassium levels in the blood. Sodium polystyrene sulfonate (Kayexalate) works by exchanging sodium ions for potassium ions in the intestines, thereby lowering blood potassium levels.
Choice C rationale
Hyponatremia, or low sodium levels, is not treated with sodium polystyrene sulfonate, which targets potassium removal.
Choice D rationale
Hypocalcemia refers to low calcium levels and is unrelated to the action of sodium polystyrene sulfonate, which addresses potassium imbalance.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["3"]
Explanation
Step 1 is 1.5 mg ÷ 0.5 mg/tablet = 3 tablets.
Final calculated answer: 3 tablets.
Correct Answer is C
Explanation
Choice A rationale
Administering insulin when the breakfast tray arrives may not provide sufficient time for the insulin to take effect before the client begins eating, potentially leading to hyperglycemia.
Choice B rationale
Administering insulin at 07: is too early and may result in hypoglycemia before the client eats breakfast.
Choice C rationale
Administering insulin at 07: allows sufficient time for the insulin to take effect before the client eats breakfast, helping to maintain appropriate blood glucose levels.
Choice D rationale
Administering insulin 30 minutes after breakfast is too late and could result in hyperglycemia since the client would have already consumed carbohydrates.
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