- Death in the womb
- Various malformations
- Growth and developmental delay
- Cancer
The above-mentioned damages vary according to the dose of the
radiation and the period of pregnancy.
There is no evidence that the radiation dose below 5 rad
(5000 mrad) (0.05 Gy) shows bad effects on pregnancy such as low, death,
anomaly, developmental retardation, mental retardation. Although there is no
clear information about doses between 5 and 10 rad, studies showing that the
risk of congenital malformation increases with radiation above 10 rad (10000
mrad) (0.1 Gy) dose. As seen in the list below, diagnostic x-rays emit
radiation well below the 5 rad (5000 mrad) limit mentioned here.
According to the list below, for example, approximately 20
abdominal films (or abdominal tomography) can reach the 5000 mrad limit. Again,
hundreds of dental x-rays or chest x-rays can only reach this limit. However,
it is still necessary to avoid unnecessary X-ray shots during pregnancy and, if
possible, protect the abdominal area with a lead vest. Non-emergency x-ray
films should be postponed to the period after pregnancy.
In the first 14 days of pregnancy after fertilization, the
embryo is very sensitive to radiation and usually, according to the "all
or nothing" rule, pregnancy either ends completely (low or death) or
pregnancy continues normally. During this period, it is not observed that it
causes anomaly or growth retardation. When exposed to high doses of radiation
after these first 14 days, mental retardation and anomalies related to the
brain, eyes and other organs and growth retardation may develop. After 20-25
weeks, the fetus is more resistant to the teratogenic (anomaly) effects of
radiation.
There are studies indicating that some cancers (leukemia) may
be more common in children exposed to radiation while in the womb. This risk
increase is also observed in exposure to doses below 5 rad (1-2 rad).
The dose to
which the fetus is exposed (from the unit of mrad) in various x-ray films and
computed tomography:
- A chest movie: less than 1 mrad
- A belly film: 200-300 mrad
- An IVP: 400-900 mrad
- Neck and spinal cord films: less than 1 mrad
- Lumbar vertebra film: 400-600 mrad
- A dental film: 0.01
- Mammography: Not negligibly small
- Chest CT (Computed tomography): 30 mrad
- Abdominal CT (Computed tomography): 250 mrad
Radiation
units:
1 rad = 0.01 gray (Gy) = 0.01 sievert (Sv) = 1 rem
1 rad = 1000 mrad = 10 mGy = 0.01 Gy
1 rem = 1000 mrem = 10 mSv = 0.01 Sv
As seen in the list above, the x-ray beam dose received by
the patient when taking a dental x-ray film or a lung x-ray film is hundreds of
times less than the 5000 mrad limit that can damage it. Approximately 20-25 x-ray
radiographs of the abdomen can only reach this harmful limit.
-MINERAL WATER DRINKING IN PREGNANCY
-USING A MICROWAVE OVEN IN PREGNANCY
-USE OF OMEGA 3 IN PREGNANCY
-CAN PROZAC (FLUOXETINE) BE USED IN PREGNANCY?
-SAUNA IN PREGNANCY
-DAMAGES OF SMOKING IN PREGNANCY
-THE IMPORTANCE OF DRINKING PLENTY OF WATER IN PREGNANCY
-TUNA CONSUMING IN PREGNANCY
-TRAUMA, ACCIDENT AND INJURIES IN PREGNANCY
