American Registry of Radiologic Technologists (ARRT) Practice Exam

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What is the established fetal dose limit guideline for radiographic procedures during the entire gestation period?

0.1 rem
0.5 rem
5 mSv
500 mrem

The correct answer is: 0.5 rem

The established fetal dose limit guideline for radiographic procedures during the entire gestation period is 0.5 rem, which is equivalent to 5 mSv. This guideline is based on recommendations from various radiation safety authorities, aimed at protecting the developing fetus from potential harmful effects of ionizing radiation. The limit of 0.5 rem is set to minimize the risk of teratogenic effects and developmental issues that could arise from prenatal exposure to radiation. This level is considered to be within a safe range that balances the need for diagnostic imaging during pregnancy with the imperative to protect fetal health. Adhering to this guideline is crucial in clinical practice, especially in cases where radiographic procedures may be necessary. Understanding this fetal dose limit helps radiologic technologists and healthcare providers make informed decisions about imaging considerations during pregnancy, ensuring that both maternal and fetal safety is prioritized.