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Before the nurse administers I.V. replacement of 5% dextrose in water with potassium chloride, what nursing intervention must be completed first?

  • A. Adding potassium chloride to the bag at the bedside
  • B. Evaluating laboratory results for electrolytes
  • C. Priming tubing using sterile technique
  • D. Checking the rate for I.V. push administration
Correct Answer: B

Rationale: Evaluating electrolyte levels, especially potassium, is critical before administering potassium chloride to prevent hyperkalemia. Adding potassium at the bedside is unsafe, and priming or checking rates follows.