A client with chronic renal failure is on a sodium- and potassium-restricted diet. The client asks if a salt substitute can be used. What is the nurse's best response?
A. "Salt substitutes contain some sodium and should be used in moderation."
B. "Salt substitutes contain potassium and therefore should not be used."
C. "Salt substitutes may be used once dialysis is begun."
D. "You may use a salt substitute any time you like."
B
The client is taught to avoid salt substitutes because most contain potassium. In chronic renal failure, hyperkalemia is a danger because it can lead to cardiac dysrhythmias.
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