A questionnaire survey was conducted on radiation risk and medical exposure, particularly in applications involving children. The survey was targeted at nurses (170 females) engaged in important roles in communicating risk regarding medical exposure. The questionnaire survey yielded the following findings. 1) A significant number of respondents associated the word "radiation" with "cancer treatment," "exposure," and "X-ray pictures." Perceptions about "food exposure" differed between respondents with children and those without. 2) Among the potential health problems posed by radiation, "effects on children," "cancer and leukemia," and "genetic effects" were perceived as the most worrisome. Significant differences in perception were noted regarding infertility between respondents with children and those without. 3) Concerning the effects of medical exposure on fetuses/children, only 10 percent of all respondents replied that they were not anxious about negative effects in either case. Among the respondents who felt uneasy about these aspects, most tended to assess exposed parts, doses, damage potentially suffered, timing of occurrence, and uncertainty, based on their professional experience and knowledge, to rationally distinguish acceptable risks from unacceptable ones and to limit concern to the unacceptable aspects.
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