What is a primary concern associated with CT scans during pregnancy?

One primary concern associated with CT scans during pregnancy is the exposure to high levels of radiation. During pregnancy, the developing fetus is particularly sensitive to radiation, which can pose a risk of harmful effects, including potential teratogenic effects or increased risk for cancer later in life. Studies show that ionizing radiation, such as that produced by CT imaging, can be detrimental, especially during the first trimester when the fetus is undergoing critical organ development.

While the other concerns listed have their own relevance in various contexts, they do not carry the same level of risk in relation to prenatal care. Dehydration is not directly linked to CT scans, and the use of contrast agents, although it may pose other risks, is not as significant as the radiation risk. Claustrophobia is a consideration for patient comfort but does not relate to biological risks for the fetus during the procedure. Therefore, high levels of radiation exposure is the most pressing concern when considering CT scans for pregnant individuals.