The nurse clarifies that serum potassium levels are determined before surgery to:

a. assess kidney function.
b. determine respiratory insufficiency.
c. prevent arrhythmias related to anesthesia. d.
measure functional liver capability.


ANS: C
Serum electrolytes are evaluated if extensive surgery is planned or the patient has extenuating problems. One of the essential electrolytes examined is potassium; if potassium is not available in adequate amounts, arrhythmias can occur during anesthesia.

Nursing

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