NCLEX-RN · Question #804
NCLEX-RN Question #804: Real Exam Question with Answer & Explanation
The correct answer is D. Drive potassium from the serum back into the cells. (A) Sodium polystyrene sulfonate (Kayexalate), a cation exchange resin, exchanges sodium ions for potassium ions in the large intestine reducing the serum potassium. (B) Calcium is administered to protect the myocardium from the adverse effects of hyperkalemia. Serum levels refle
Question
Options
- ARemove the potassium from the body by renin exchange
- BProtect the myocardium from the effects of hypokalemia
- CPromote rapid protein catabolism
- DDrive potassium from the serum back into the cells
Explanation
(A) Sodium polystyrene sulfonate (Kayexalate), a cation exchange resin, exchanges sodium ions for potassium ions in the large intestine reducing the serum potassium. (B) Calcium is administered to protect the myocardium from the adverse effects of hyperkalemia. Serum levels reflect hyperkalemia. (C) Rapid catabolism releases potassium from the body tissue into the bloodstream. Infection and hyperthermia increase the process of catabolism. (D) The administration of dextrose and regular insulin IV forces potassium back into the cells decreasing the potassium in the serum.
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