Which of the following is primarily a concern for radiation workers during pregnancy?

The primary concern for radiation workers during pregnancy is the increased sensitivity of the developing fetus to radiation. During pregnancy, particularly in the early stages, the cells of the developing fetus are rapidly dividing and are more susceptible to damage from ionizing radiation. This can lead to higher risks of developmental issues, potential malformations, or other health problems for the child. Therefore, radiation safety protocols emphasize minimizing exposure to radiation for pregnant workers to protect the health of both the expectant mother and the fetus.

The other factors may have their relevance in a general context, but they do not carry the same level of critical concern specifically related to radiation exposure during pregnancy. For example, while decreased physical stamina and higher likelihood of workplace accidents can affect all workers, they are not unique to the radiation aspect and do not directly relate to the fetal sensitivity to radiation. Additionally, non-ionizing radiation poses different concerns and typically does not have the same risk profile as ionizing radiation, which is the primary type of exposure of concern in these situations.