A nurse is caring for a client with severe hypokalemia. The provider places an order for IV potassium chloride (KCl) 60 mEq x 1 now. Which action should the nurse take when caring for this client?

The correct answer is C: Only give the KCl via a central venous line. When administering IV potassium chloride for severe hypokalemia, it is essential to use a central venous line to prevent the risk of extravasation and tissue damage. Potassium chloride is a vesicant that can cause severe tissue irritation and necrosis if it leaks into the surrounding tissues. Using a central line ensures that the medication is delivered safely and accurately into the central circulation. Discontinuing cardiac monitoring (choice A) is dangerous as hypokalemia can lead to serious cardiac dysrhythmias. Administering KCl as a rapid IV bolus (choice B) can cause cardiac arrest due to hyperkalemia. Infusing KCl at a rate of 10 mEq/hour (choice D) is too slow for severe hypokalemia and may not correct the deficit in a timely manner.