81mKr: Dose Estimates to the Fetus
| Fetal dose | ||||
| Stage of gestation | mGy/MBq | rad/mCi | mGy* | rad* |
| Early | 1.8 × 10−7 | 6.7 × 10−7 | 7.2 × 10−6 to 7.2 × 10−5 | 7.2 × 10−5 to 7.2 × 10−6 |
| 3 mo | 1.8 × 10−7 | 6.7 × 10−7 | 7.2 × 10−6 to 7.2 × 10−5 | 7.2 × 10−5 to 7.2 × 10−6 |
| 6 mo | 2.8 × 10−7 | 1.0 × 10−6 | 1.1 × 10−5 to 1.1 × 10−4 | 1.1 × 10−6 to 1.1 × 10−5 |
| 9 mo | 3.4 × 10−7 | 1.3 × 10−6 | 1.4 × 10−5 to 1.4 × 10−4 | 1.4 × 10−6 to 1.4 × 10−5 |
↵* Maternal administered activity, 40–400 MBq (1.1–11 mCi).
Dose estimates to the fetus were not provided by Russell et al. (32) but were estimated using kinetic data in ICRP 53. No information about possible placental crossover of this compound was available for use in estimating fetal doses.