How aweful! Sending hugs. How did they diagnose trisomy 18?
It is usually picked up through chorionic villi sampling( we has this done- our risk was 1/29) or amniocentesis. A good obgyn doing a scan can see the baby's hands can not look right. If the hospital is correct about trisomy 18 then the prognosis is not good. We were told it is fatal. She should be offered counseling to give her support through this incredibly traumatic experience. I think it's a good idea for her to come to a bigger hospital like you suggested and get specialist care. Where's home for you?