Science Questions

How early in a pregnancy can you test for Down's?

Sun, 12th Oct 2008

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Rolly Mandlebrot asked:

The pregnancy tests for things like Down syndrome: how early into pregnancy can you do that test?



Chris - Steve Quake told me when I spoke to him last week that at the moment their tests have been done at fourteen weeks which is roughly the same time you'd do an amniocentesis. But, he thinks he'll be able to wind the clock back even further and thinks we'll be doing these tests five weeks after conception. So very early in pregnancy giving people much more time to make decisions about what they want to do if they want to do anything about that.


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