Several factors: The heart develops rather early so medication exposure in the first trimester can sometimes cause heart problems. Chromosomal or genetic issues also can cause heart problems, .
Answered 11/27/2017
6.6k views
Folic acid deficient: Folic acid deficieny can cause fetal heart defects! multiple genetic, drug, medical and environmental factors can predispose to fetal heart defects.
Answered 6/25/2014
5.7k views
Missinformation: Heart defects occur sporadically and may reflect genetic,chromosomal, or toxic effects.Inheritance risk runs about 4% for any defect if one parent has one. There are some inherited syndromes that may have a heart defect where risk is up to 50%..Toxic effects (fetal alcohol) depends on timing and amount.Kids with abnormal chromosomes will often have a heart defect.
Answered 10/3/2015
2.2k views
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