Is There a Change in Amniocentesis?

There's a little bit of an interesting calculus that happens now because we now have the cell-free DNA maternal blood tests which can identify trisomies. Have you seen a change in the number of women opting for amniocentesis since those tests have come out? I think there is such a push for these more non-vacentesis that we don't really do them as often. If you are past 40 weeks you need to be screened twice a week for oligohydramnios and so you can think of the amniatic fluid might get tell me if this is right as being kind of like the the cushioning.