What is the purpose of using a second dosimeter during pregnancy?

The primary purpose of using a second dosimeter during pregnancy is to monitor exposure to the fetus specifically. During pregnancy, there is an increased concern regarding the potential effects of radiation exposure on the developing fetus. The second dosimeter typically is worn in an area that would likely reflect the radiation exposure experienced by the fetus, often located at the abdomen, while the first dosimeter is usually worn at the location where the radiation exposure is more commonly assessed, like on the collar.

This practice is crucial for ensuring that the radiation exposure to the mother and the fetus remains within established safety limits. By using a second dosimeter to specifically monitor the fetus's exposure, healthcare providers can take appropriate actions to mitigate risks, enhance protective measures, and ensure the safety of both mother and child during pregnancy.