A client who will undergo thyroidectomy at a later date has been started on medication therapy with potassium iodide (Lugol solution). As the licensed practical nurse (LPN) prepares to administer a scheduled dose, the client states they are experiencing fever, sore throat and mouth ulcers. The LPN should:

A. Give half the prescribed dose and notify the registered nurse (RN): The symptoms described indicate a serious side effect of potassium iodide, such as agranulocytosis (a decrease in white blood cells), and a dose reduction is not recommended in this situation.

B. Continue to administer the medication: Continuing the medication without addressing the symptoms is unsafe. Fever, sore throat, and mouth ulcers are warning signs of a serious adverse effect, such as agranulocytosis, and continuing the medication could cause harm.

C. Stop the medication for 24 hours: Simply stopping the medication for a short period of time is not sufficient. The symptoms need to be reported immediately, and potassium iodide should be withheld pending further evaluation by the healthcare provider.

D. Withhold the medication and notify the RN: Fever, sore throat, and mouth ulcers are potential signs of a serious adverse reaction like agranulocytosis, which requires immediate attention. The nurse should withhold the medication and inform the healthcare provider for further evaluation and guidance.