Version June 2024
| Menstrual or gestational age | Conception age | Radiation dose | ||
| <50 mGy (<5 rad) | 50 to 100 mGy (5 to 10 rad) | >100 mGy (>10 rad) | ||
| 0 to 2 weeks (0 to 14 days) | Before conception | None | None | None |
| 3rd to 4th week (15 to 28 days) | 1st to 2nd week (1 to 14 days) | None | Probably none | Possible spontaneous abortion |
| 5th to 10th week (29 to 70 days) | 3rd to 8th week (15 to 56 days) | None | Potential effects are scientifically uncertain and probably too subtle to be clinically detectable | Possible malformations increasing in likelihood as dose increases |
| 11th to 17th week (71 to 119 days) | 9th to 15th week (57 to 105) | None | Potential effects are scientifically uncertain and probably too subtle to be clinically detectable | Increased risk of deficits in intelligence quotient or mental retardation that increase in frequency and severity with increasing dose |
| 18th to 27th week (120 to 189 days) | 16th to 25th week (106 to 175 days) | None | None | Intelligence quotient deficits not detectable at diagnostic doses |
| >27 weeks (>189 days) | >25 weeks (>175 days) | None | None | None applicable to diagnostic medicine |
آیا می خواهید مدیلیب را به صفحه اصلی خود اضافه کنید؟
