A nurse is caring for a client who has chronic kidney disease (CKD) and states she has heartburn.
The provider prescribes aluminum hydroxide. The client asks, "Why can't I just take the antacid magaldrate my husband has at home?" The nurse explains to the client that aluminum hydroxide is the preferred antacid because it lowers which of the following?
Serum magnesium levels
Serum phosphorus levels
Serum potassium levels
Serum calcium levels
The Correct Answer is B
A. Aluminum hydroxide can lead to increased serum magnesium levels, but this is not the reason for its preference in chronic kidney disease.
B. Aluminum hydroxide is preferred because it binds to dietary phosphate, reducing serum phosphorus levels in patients with chronic kidney disease who are prone to hyperphosphatemia.
C. Aluminum hydroxide does not significantly affect serum potassium levels.
D. Aluminum hydroxide can lead to decreased serum calcium levels due to binding, but this is not the primary reason for its preference in chronic kidney disease.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Constipation is not typically associated with hypocalcemia.
B. Shortened QT intervals are not characteristic of hypocalcemia; rather, prolongation of QT intervals is more common.
C. Hypoactive deep tendon reflexes, would suggest a decrease in neuromuscular excitability, which is contrary to the increased excitability seen in hypocalcemia. Therefore, hypoactive deep tendon reflexes is more commonly associated with hypercalcemia and not hypocalcemia.
D. Tingling of the extremities is a common symptom of hypocalcemia.
Correct Answer is B
Explanation
A. Respiratory Acidosis, both compensated and uncompensated, is characterized by an elevated PaCO2, which is not present in this case.
B. The elevated pH (7.5) and HCO3 (34 mmol/L) indicate metabolic alkalosis. The elevated pH and the slightly elevated PaCO2 (40 mm Hg) suggest the partially compensated state, which is the respiratory compensation attempting to correct the alkalosis.
C. The fact that the PaCO2 is not low rules out respiratory alkalosis.
D. The arterial blood gas values indicate a high pH (7.5), a normal PaCO2 (40 mm Hg), and an elevated HCO3 (34 mmol/L), which are indicative of metabolic alkalosis. However, the elevated pH and the slightly elevated PaCO2 (40 mm Hg) suggest a partially compensated state.
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