A nurse is preparing to administer intravenous potassium chloride (KCl) to a patient. Which critical action must the nurse perform before administering this high-alert medication?

✓ Correct Answer: Option C

IV potassium chloride is a high-alert medication that can be fatal if administered incorrectly. Double-checking concentration and dilution with another RN is a critical safety measure to prevent errors, as it is never given as a bolus and requires specific dilution.