Call the doctor if these are severe or persist. Amniocentesis is generally accurate. The most common error is a cell culture failure, in which case the amniocentesis may need to be repeated. Better results are obtained from more experienced labs. There are also some results which are inherently ambiguous, because we don't really know the effect of the chromosomal abnormality detected.
Some reports say yes, others no.
The effects of XXX are also unknown. Amniocentesis is recommended when the risk of a disability detectable by amnio is judged to be greater than the risk from amniocentesis. The most common reasons for having an amnio recommended are AFP results and age. When amniocentesis was first available, it was recommended for women over 40. As it has become more available, the age at which it is recommended has been lowered, and it is now often offered to all pregnant women over the age of 35. 7.