Final answer:
The dose limit for a pregnant technologist is 0.5 mSv (50 mrem), considering occupational safety standards and the need to minimize radiation exposure in medical settings.
Step-by-step explanation:
The dose limit for a technologist during pregnancy is 0.5 mSv (50 mrem). This limit is based on the guidelines set for occupational exposure to radiation, particularly for those who work in healthcare settings and are pregnant. The options provided include: 0.05 mSv, 50 mSv, 5 mSv, and 0.5 mSv. In medical practices, the use of radiation is controlled, and doses are kept as low as possible to minimize risks.
For instance, the radiation from chest x-rays is about 0.1 mSv which is a low dose, and care is taken to limit exposure to only the tissue imaged. Whole-body, single-exposure doses of less than 0.1 Sv (10 rem) are considered low doses, whereas doses from 0.1 Sv to 1 Sv (10 to 100 rem) are considered moderate, and those greater than 1 Sv (>100 rem) are high.