What is the annual occupational effective dose limit for a 43-year-old radiographer?

• A. 4.3 millisievert (mSv).
• B. 43 millisievert (mSv).
• C. 50 millisievert (mSv).
• D. 5 millisievert (mSv).

Answer: (C)

The main idea is understanding occupational radiation dose limits that protect workers. For radiographers, the upper limit for effective dose to the whole body in one year is 50 millisieverts. This ceiling is set to minimize cancer risk from ionizing radiation while still allowing necessary work. The fact that the radiographer is 43 years old doesn’t change this annual cap—the limit applies to adult workers. There’s also a broader guideline that the average dose over five years should be about 20 mSv per year (no more than 100 mSv in any five-year period), but the single-year limit remains 50 mSv. The other options don’t match the official annual limit: 4.3 mSv and 5 mSv are far below the cap, and while 43 mSv is possible in a year under some circumstances, it does not represent the maximum allowed in a single year.