Icrp Publication 94

After some therapeutic nuclear medicine procedures with unsealed radionuclides, precautions may be needed to limit doses to others, but this is rarely the case ... » 

After some therapeutic nuclear medicine procedures with unsealed radionuclides, precautions may be needed to limit doses to others, but this is rarely the case after diagnostic procedures. This book recommends that young children and infants, as well as visitors not engaged in direct care or comforting, be treated as members of the public. «