How much radiation is the annual limit for the skin, hands, and feet according to NCRP?

How much radiation is the annual limit for the skin, hands, and feet according to NCRP?

• A. 100 mSv
• B. 300 mSv
• C. 500 mSv
• D. 700 mSv

Answer: (C)

The annual dose limit for the skin, hands, and feet as established by the National Council on Radiation Protection and Measurements (NCRP) is set at 500 mSv. This limit is determined based on the understanding that these areas of the body can receive higher levels of radiation exposure compared to other parts due to their frequent engagement in tasks involving radiation.

The rationale for this specific limit is tied to the risk assessment of radiation exposure and the desire to minimize potential health hazards, including skin damage and a higher risk of radiation-induced conditions. The 500 mSv limit reflects a balance between the need for diagnostic and therapeutic procedures in medical settings and the protection of those performing these procedures or being exposed through other means.

Other options present values that exceed or do not meet the established guidelines of the NCRP, demonstrating the importance of adhering to recommended safety standards in radiography and radiation protection to safeguard from potential adverse effects of excessive radiation exposure.