CF gene mutations: There are currently more than 1900 mutations that are known to cause cf. About 70% of CF pts in us have deltaf508 mutation, as 1 in every 25 persons is a carrier for this mutation. All these mutations result in abnormal activity of a protein called cftr which causes all the CF related problems. Genetic testing can give the specific mutation each pt has. Talk to your local CF center.
Answered 10/3/2016
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