Question

All of the following can prevent congenital anomalies except: 1) genetic screening 2) warning labels on alcoholic beverages 3) folic acid supplements 4) advising pregnant women to sleep on their backs

Answer 1

The answer is 4.

Congenital anomalies are the birth defects of the new born resulting from different causes e.g structural defects of chromosomes either mild or moderate or genetic defects,

Chromosomal defects are the reason for congenital anomaly.e.g Downs syndromme etc either addition or deletion on the chromosome or mutation etc.

Alcohol should be avoided at any stage of gestation as there is no level or time known as safe during pregnancy..These varieties of defects in fetus due to alcohol during pregnancy is known as fetal alcohol spectrum disorders(FASDs)

Enough folic acid supplements during gestation can prevent anencephaly or spina bifida like congenital defects.