Which diagnostic measure is most accurate in detecting neural tube defects?
a) Presence of high maternal levels of albumin after 12th week of gestation
b) Significant level of alpha-fetoprotein present in amniotic fluid
c) Amniocentesis for lecithin-sphingomyelin (L/S) ratio
d) Flat plate of the lower abdomen after the 23rd week of gestation
Answer: b)Significant level of alpha-fetoprotein present in amniotic fluid
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