Well, I’m new to this message board and all the posts show everyone has a lot of knowledge so I figured I should ask.

My friend’s husband has CAH and has been on Dex all his life.  She gets pregnant and I mentioned that I’ve read she should take Dex during pregnancy starting aroung 10 weeks, just in case.  MD says she shouldn’t... Well at 16 weeks MD tells her he’s done some research and maybe she should be tested to see if she’s a carrier.  Turns out she’s a carrier of 3 types (21, 17 and Ntron??)  She starts to take the Dex at 16 weeks.  Now at 19 weeks they do an Amnio to see if baby has CAH.  How do they know from amnio if the baby is a carrier of CAH or if the baby actually has CAH????

My friend is completely stressed out by the baby being born with ambiguous genitals or worse (without a vaginal opening or uterus etc).  Does anyone know the stats on how many CAH girls are born severely ambiguous genitals?  And what do most parents do about this? 

Any response will help me.  Thanks  - am