I am a student nurse-- and a mom of two. I remember being screened for CF in the routine bloodwork done at my first prenatal appt. I just assumed this was routine now for everyone. And yet I have heard on-line news of several babies (friends of friends, facebook, etc) being born with CF and the parents had no idea they were carriers and the news was very shocking for them. I am confused about how this can happen with all the screening that is now available. Is the CF pregnancy test no longer being done, or maybe it's not that accurate?