Is X’Ray safe in
pregancy period??
Ans:
Mutagenic effects in the offspring of irradiated women my ne manifested years
after the birth of the infant. Mutagenic effects presumably explain the 50%
increased risk for leukemia in children exposed in utero to radiation during
maternal pelvimetry examinations compared with non irradiated controls. However
clinical consequence is almost nil, The absolute risk is about 1 in 2000 for
exposed versus 1 in 3000 for unexposed children.
Low
estimates one additional cancer death per 1700 10 mGy exposures. If one were to
recommend that pregnancies be terminated whenever exposure from diagnostic
radiation occurred because of the increased probability of leukemia in the
offspring 1699 exposed pregnancies would have to be terminated to prevent a
single cases of leukemia . Radiation exposures should be minimized but fear of
radiation should never preclude on from necessary diagnostic procedures. A
consent form has been developed for use with pregnant women.
Questions
have also been raised about potential risks to children associated with
parental occupational exposure to low dose radiation. A case control study by
Gardner and colleagues in the area around the Sellafield Nuclear Facility in
the United Kingdom found a statistically significant association between
paternal preconception radiation dose and childhood leukemia risk . A similar
association had been obse4rved between paternal preconception radiation and
risk in workers at the Hanford Nuclear Facility in the United States. Thr
finding regarding childhood leukemia risk is a particularly contentious issues
contradicting studies of the children born to atomic bomb survivors who do not
show genetic effects such as increased risks for childhood cancers. A study in
the vicinity of nuclear facilities in Ontario also failed to demonstrate an
association between childhood leukemia risk and paternal preconceptional
radiation exposure.
Mutagenic
effects in the offspring of irradiated women my ne manifested years after the
birth of the infant. Mutagenic effects presumably explain the 50% increased risk
for leukemia in children exposed in utero to radiation during maternal
pelvimetry examinations compared with non irradiated controls. However clinical
consequence is almost nil, The absolute risk is about 1 in 2000 for exposed
versus 1 in 3000 for unexposed children.
Low
estimates one additional cancer death per 1700 10 mGy exposures. If one were to
recommend that pregnancies be terminated whenever exposure from diagnostic
radiation occurred because of the increased probability of leukemia in the
offspring 1699 exposed pregnancies would have to be terminated to prevent a
single cases of leukemia . Radiation exposures should be minimized but fear of
radiation should never preclude on from necessary diagnostic procedures. A
consent form has been developed for use with pregnant women.
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