A nurse is caring for a client who is receiving an IV infusion of potassium chloride. Which of the following complications should the nurse recognize as an indication to discontinue the infusion?

A. Hypomagnesemia: Low magnesium levels are not an indication to stop a potassium infusion, although magnesium and potassium levels are related. Correction of magnesium may be necessary, but hypomagnesemia alone does not warrant discontinuation. B. Neutropenia: A low white blood cell count is not directly related to potassium administration and does not require stopping the infusion. C. Coughing: Respiratory symptoms like coughing are not a recognized complication of potassium chloride infusion and do not indicate the need to discontinue therapy. D. Hyperkalemia: Elevated potassium levels can be life-threatening due to the risk of cardiac arrhythmias. If laboratory results or clinical signs indicate hyperkalemia, the potassium infusion should be immediately discontinued and appropriate interventions initiated.