American Registry of Radiologic Technologists (ARRT) Practice Exam

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How much whole-body radiation can an individual be exposed to in a year according to NCRP?

50 mSV

The National Council on Radiation Protection and Measurements (NCRP) recommends that the maximum annual dose limit for occupational exposure to whole-body radiation is set at 50 millisieverts (mSv). This guideline is based on balancing the need for radiation use in various fields, including medicine and industry, while ensuring safety for those who may work with or be exposed to radiation.

The 50 mSv limit is implemented to reduce the risk of potential harmful effects that can arise from high levels of exposure, which are established from studies and data on radiation safety. Adhering to this guideline helps protect workers in medical imaging and radiation therapy from the long-term risks associated with cumulative radiation doses. Therefore, understanding this standard is crucial for radiologic technologists as part of their professional responsibilities in maintaining safety protocols.

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100 mSV

150 mSV

200 mSV

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