Under what circumstances might a radiographer wear two dosimeters?

Wearing two dosimeters is typically recommended for radiographers during pregnancy or during specific procedures such as vascular procedures. This practice allows for more accurate monitoring of radiation exposure, particularly in circumstances where there may be heightened risk or concern for both the mother and the fetus.

When a radiographer is pregnant, using two dosimeters can help track exposure to radiation more effectively — one dosimeter is usually worn at the waist level (to monitor the radiation dose to the fetus) and the other at collar level (to monitor the radiation dose to the radiographer's head and upper body). This dual monitoring provides a clearer understanding of the levels of exposure to both the individual and the unborn child, ensuring that safety protocols are strictly followed.

Specific procedures like vascular interventions often involve using fluoroscopy, which can lead to increased radiation exposure during the process. Thus, wearing two dosimeters in these contexts not only safeguards health but also supports regulatory compliance regarding permissible radiation limits.

The other options present situations where wearing two dosimeters isn't standard practice or necessary, focusing instead on lower-risk scenarios or environments where radiation exposure is minimal or controlled.