Radioactive iodine is indicated for the treatment of hyperthyroidism. The nurse should include which teaching in this patient's plan of care?

A) Isolation is required for 6-8 weeks
B) An additional dose may be needed
C) Thyroid replacement therapy is prescribed
D) An overnight hospital stay is required

Radioactive iodine (RAI) is indicated for the treatment of hyperthyroidism. It is given as an oral preparation, usually as a single dose on an outpatient basis. The radioactive iodine makes its way to the thyroid gland where it destroys some of the cells that produce thyroid hormone. The RAI is completely eliminated from the body after about 4 weeks. The extent of thyroid cell destruction is variable, thus the patient has ongoing monitoring of thyroid function. If thyroid production remains too high a second dose may be needed. The goal of this procedure is to destroy thyroid hormone producing cells; additional thyroid hormone is not prescribed.