Although most people have healthy babies, with every pregnancy there is a 3-4% chance to have a baby born with problems. The following are a few common,
serious disorders that can occur even without a family history. You can have carrier screening (a simple blood test) before the baby is born to determine if you carry
the genes that cause the disorders shown below
What is a carrier?
A carrier is a person who has a gene that increases the risk to have children with a specific genetic disease. People do not know if they are carriers until they have a
blood test or an affected child. Some disorders occur only if both parents are carriers and other disorders occur only when the mother is a carrier
What is carrier screening?
Carrier screening involves a blood test from one or both parents to determine if they carry a specific gene that increases the risk for that disorder. If you turn out to
be a carrier, prenatal testing such as amniocentesis or chorionic villus sampling (CVS) is available to determine if your unborn baby is affected. All testing is optional
and you can choose which disorder(s) for which you want to be tested.
Cystic Fibrosis (CF)
Symptoms of Disease
Most common inherited disease in
North America. A chronic disorder
that primarily involves the
respiratory, digestive and
reproductive systems. Symptoms
include pneumonia, diarrhea, poor
growth and infertility.
If both parents are carriers, there is
a 1 in 4 (25%) chance to have a child
with cystic fibrosis.
General Population Carrier Frequency
- 1 in 25 Caucasians
- 1 in 26 Ashkenazi Jewish
- 1 in 46 Hispanics
- 1 in 65 African Americans
- ~ 1 in 90 Asian