A child is admitted to the hospital with diarrhea and vomiting. Potassium chloride is prescribed for inclusion with rehydration IV fluids. Prior to administering the potassium, the nurse should ensure that which condition exists?

The client has had no cardiac arrhythmias in the last 24 hours.

The oxygen saturation level per pulse oximeter is greater than 95%.

The client has stopped vomiting before the potassium is added to the IV fluids.

The client is able to void, assuring kidney function is present.