[ricardobeat]

I thought genetic screening was most useful before pregnancy, to know if a child would be at risk of inheriting any conditions from their parent’s genes, or to diagnose a disease and guide treatment. What’s the purpose of blanket screening a child that hasn’t shown any symptoms?

[rubyist5eva]

In our case, this disease can be detected very early in the womb and children born with it do not survive very long - usually only a few months, 2 years at most if I'm remembering correctly. They do these tests early so the pregnancy can be terminated if the parents choose.