The decision to have cystic fibrosis (CF) carrier screening is a personal one. You may wish to be tested if you are concerned that you or your partner might be carriers of CF. This may be more likely if either of you has a family member with the disease.
Some people decide to be tested to help find out their risks of passing on to their children a disease that shortens life. Among whites, about 4 out of 100 are carriers of a defective CF gene.1 CF is much less common in other racial and ethnic groups.
You may decide to have carrier testing for CF if you are already pregnant. The test results may influence your decision about your pregnancy or help you make decisions about the care of your newborn child.