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Why Are Teratogens Dangerous
1st trimester: Teratogens are always bad, no matter what trimester. But 1st trimester is where all critical developments are happening. Imagine a new house being built. 1st trimester is the foundation, which damaged means no house :(. ...Read more
During the first: Trimester the baby is undergoing a great deal of development and is particularly vulnerable to teratogens. ...Read more
They usually don't: Teratogens (from terata or monstrosity) are agents that act on the developing embryo/fetus to cause birth defects. Known mechanisms include interference with molecules that govern limb, brain, heart formation like thalidomide or Methotrexate (a folate inhibitor). Teratogens usually affect only the exposed pregnancy and do not change the genes of mother/fetus for future pregnancies. ...Read more
Infection when Pregn: A woman who has rubella during pregnancy is at risk of miscarriage, fetal organ damage, blindness, deafness, heart defects etc. As a teratogenic effect of the infection on the fetus.Failure to get the vaccine in childhood or prior to pregnancy sets the stage for this disaster. With some people avoiding vaccines we are seeing more cases emerge in the general population. Risks are now higher. ...Read more
After a missed termination, i was prescribed cytotec. How soon after taking this medicine is it safe for me to try to conceive as it is teratogen?
Wait 2 months: Cytotec is out of your system pretty fast - typically within 1-2 hours. As far as Cytotec use is concerned it is safe to get pregnant. But because you had a recent abnormal pregnancy it is advised you wait at least 2 months ( 2 normal periods) before you get pregnant again. You should be taking prenatal vitamins during this time. ...Read more
Folic acid: Fetus is most vulnerable during the earliest times right after conception and first trimester when the neural tube is forming. ...Read more
When is my baby alive? From conception, first heart beat or when the brain develops? And when is my baby most vunurable to teratogens?
Philosophical..: The first part of your question is philosophical and debated the world over. Most western countries consider the fetus to have a legal entity after the point it can potentially survive ex utero - typically 24 weeks. Of course, the conceptus is a living organism as soon as conception occurs. The maximum risk for teratogenicity is 3-8 weeks and extends to 12 weeks for some organs. Take folate 1 mg! ...Read moreSee 2 more doctor answers
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