The referring physicians shall consider the justification of the nuclear medicine examinations and radionuclide therapies when writing the referrals. In addition, the nuclear medicine specialists in charge of these procedures shall ascertain the justification of each procedure, and it should be performed in an optimal manner.

limiting the radiation risk to the patients, medical personnel and public is the main purpose of radiation safety, this will be achieved by following this principle:

“as low as reasonably achievable” = ALARA, means avoiding exposure to radiation that does not have a direct benefit to you, even if the dose is small. To do this, you can use three basic protective measures in radiation safety: time, distance, and shielding.

Reducing the time of exposure can directly reduce radiation dose. Increasing the distance between you and the radiation source you will reduce exposure by the square of the distance. Lead or lead equivalent shielding for X-rays and gamma rays is an effective way to reduce radiation exposure.

Before radionuclide therapy or any examination in nuclear medicine, the possibility of pregnancy shall be ruled out through a pregnancy test.