What is the rational for administering calcium carbonate to a client with chronic renal failure?
Decreases the chance of peptic ulcer formation
Prevents constipation.
increases the tubular excretion of potassium
To lower phosphorus level
The Correct Answer is D
A. Decreases the chance of peptic ulcer formation: Calcium carbonate is not an antiulcer medication.
B. Prevents constipation: Calcium carbonate can cause constipation, not prevent it.
C. Increases the tubular excretion of potassium: Calcium carbonate does not directly affect potassium excretion.
D. To lower phosphorus levels: Calcium carbonate is a phosphate binder that reduces phosphorus absorption from food. In chronic renal failure, phosphorus builds up due to decreased kidney excretion, leading to secondary hyperparathyroidism and bone disease (renal osteodystrophy).
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Related Questions
Correct Answer is D
Explanation
A. Constipation: Hypocalcemia causes diarrhea, while hypercalcemia causes constipation.
B. Negative Trousseau’s sign: A positive Trousseau’s sign (carpal spasm during BP cuff inflation) is expected with hypocalcemia.
C. BP of 180/88: Severe hypocalcemia may cause hypotension, not hypertension.
D. Numbness and tingling of the extremities: Hypocalcemia can occur after a total thyroidectomy due to accidental removal or damage to the parathyroid glands. Neuromuscular excitability, including paresthesia (numbness and tingling), tetany, and muscle spasms, are classic signs.
Correct Answer is B
Explanation
A. Leukocytes: Erythropoietin does not affect white blood cell (WBC) production.
B. Hemoglobin: Erythropoietin stimulates red blood cell (RBC) production in the bone marrow. Clients with chronic kidney disease (CKD) develop anemia due to decreased natural erythropoietin production. A therapeutic response is seen as an increase in hemoglobin levels.
C. Platelets: Erythropoietin does not stimulate platelet production (thrombopoiesis).
D. Brain Natriuretic Peptide (BNP): BNP is a marker for heart failure, not erythropoiesis.
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