At a Glance
Why Get Tested?
When to Get Tested?
As part of routine care when a woman is pregnant or considering pregnancy for the first time; when someone wants to know their carrier status; when screening newborns for CF in some states; when someone has signs and symptoms of CF
A blood sample drawn from an infant's heel by collecting a spot of blood onto filter paper; for older children or adults, a blood sample obtained by inserting a needle into a vein in the arm; sometimes a scraping of the inner cheek (buccal swab) or prenatal (amniocentesis or chorionic villus) specimens
Test Preparation Needed?