Thanks for your query.
At the age more than 35 years we called elderly pregnant ,in which chances of Down syndrome and chromosomal malformations are slightly more .But if level 2 or 3 ultrasound
is normal & blood for triple markers is normal .there don`t appear to be nay need for amniocentesis
.It is an invasive test in which liquor around the fetus is aspirated through syringe & than tested.Consult some genetic councilor before going for it.if it can be avoided or not.
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