A nurse is educating a 35-year-old client with hyperthyroidism about the use of radioactive iodine-131 for treatment. Which statement made by the client indicates a correct understanding of this treatment?

Clients receiving this treatment do not require any follow-up evaluations after initial therapy.

This treatment permanently destroys thyroid cells, reducing hormone production.

Radioactive iodine-131 can be used during pregnancy without risks to the fetus.

Radioactive iodine-131 is the first line of treatment before trying any antithyroid medications,