Many ways of diagnosing cystic fibrosis
Since the genetic cause of cystic fibrosis is known, a blood test is all that is needed to detect the presence of the defective gene. Prenatal screening and testing to see if a healthy parent is a carrier of cystic fibrosis (has one copy of the defective gene) are also possible1
- http://www.nhlbi.nih.gov/health/health-topics/topics/cf/. Accessed December 2014.