Dose Estimates to Fetus from 131I
| Stage of gestation | Fetal dose | |
| mGy/MBq | rad/mCi | |
| Early | 0.072 | 0.27 |
| 3 mo | 0.068 | 0.25 |
| 6 mo | 0.23 | 0.85 |
| 9 mo | 0.27 | 1.0 |
Data are from Russell et al. (120). Information about possible placental crossover of this compound was included in the calculations.