A Patient Receives a Thyroid Ablation Dose of 75 MCi

A patient receives a thyroid ablation dose of 75 mCi of ¹³¹I.In the United States, according Nuclear Regulatory Commission (NRC) regulations, the patient

A) must remain isolated in the hospital until the calculated dose is less than 30 mCi.
B) can be released from the hospital.
C) can be released only if he or she lives alone and therefore will not expose others to radiation.
D) must remain in the hospital for observation until the calculated dose is less than 30 mCi but does not have to be isolated.