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 A
Explanation
A. A urine output of 175 ml over 8 hours indicates oliguria, which can be concerning in a client with impaired renal function. It suggests decreased kidney function and inadequate elimination of waste products and fluids, necessitating prompt notification of the healthcare provider.
B. This amount of urine output over 24 hours is within normal range and does not typically warrant immediate notification unless there are other concerning symptoms.
C. Cloudy urine may indicate the presence of urinary tract infection or other issues, but it alone may not require immediate notification of the provider.
D. While strong-smelling urine can be indicative of various conditions, it alone may not necessitate immediate provider notification unless accompanied by other concerning symptoms.
Correct Answer is A
Explanation
A. Creatinine levels rise in acute kidney injury due to impaired kidney function, as the kidneys are unable to effectively filter creatinine from the blood.
B. BUN (blood urea nitrogen) levels typically increase in dehydration due to reduced kidney perfusion, leading to decreased urine output and increased concentration of waste products in the blood.
C. Specific gravity increases in hypovolemia because urine becomes more concentrated as the body tries to conserve water.
D. Potassium levels may vary depending on the cause of polyuria, but polyuria itself does not necessarily cause hyperkalemia. It can be caused by various factors including diabetes insipidus or diabetes mellitus.
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