The provider has ordered Kayexalate and sorbitol to be administered to a patient. The nurse caring for this patient would expect which serum electrolyte values prior to administration of this therapy?
a. Sodium 125 mEq/L and potassium 2.5 mEq/L
b. Sodium 150 mEq/L and potassium 3.6 mEq/L
c. Sodium 135 mEq/L and potassium 6.9 mEq/L
d. Sodium 148 mEq/L and potassium 5.5 mEq/L
ANS: C
Severe hyperkalemia, with a potassium level of 6.9 mEq/L, requires aggressive treatment with Kayexalate and sorbitol to increase the body's excretion of potassium. The normal range for serum potassium is 3.5 to 5.5 mEq/L, so patients with the other potassium levels would not be treated aggressively or would need potassium supplementation.
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