Molecular diagnosis of cystic fibrosis

The clinical and pathologic features of patients with cystic fibrosis are summarized, and generalized genotype or phenotype correlations are discussed in this article. Incorporation of modern molecular biologic techniques into a rapid, cost-efficient, and specific diagnostic laboratory test is outlined. The protocol for the multiplex polymerase chain reaction detection of five common cystic fibrosis transmembrane conductance regulator (CFTR) mutations by ASO hybridization is detailed. Neonatal screening and issues involved in the genetic counseling of families at risk for cystic fibrosis are presented. Recommendations for molecular diagnostic testing in cystic fibrosis are made.