Estimating the radiation dose to the fetus requires consideration of all sources external and internal to the mother’s body, including the following: Health effects to a fetus from radiation exposure depend largely on the radiation dose. Estimating the Radiation Dose to the Embryo or Fetus The health consequences can include growth restriction, malformations, impaired brain function, and cancer. Depending on the stage of fetal development, the health consequences of exposure at doses greater than 0.5 Gy can be severe, even if such a dose is too low to cause an immediate effect for the mother. However, accidental or intentional exposure above regulatory limits may be cause for concern.Īlthough radiation doses to a fetus tend to be lower than the dose to the mother, due to protection from the uterus and surrounding tissues, the human embryo and fetus are sensitive to ionizing radiation at doses greater than 0.1 gray (Gy). Most of the ways a pregnant woman may be exposed to radiation, such as from a diagnostic medical exam or an occupational exposure within regulatory limits, are not likely to cause health effects for a fetus.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |