Cystic Fibrosis
How is it diagnosed?
All newborn infants in the UK are now screened for Cystic Fibrosis. The test (for immunoreactive trypsin - “IRT”) is performed on the blood sample obtained by heel prick as part of the normal Guthrie test carried out on all newborn infants. In those with a positive heel prick test, the diagnosis is confirmed by a sweat test to identify the very high abnormal level of salt in the sweat which is characteristic of the condition. Also the genetic mutations present are identified – adding further confirmation to the diagnosis. Accurate prenatal, antenatal and carrier testing are also possible.
What are the causes?
| How is it treated? ![]()