Cystic Fibrosis (CF): Tests
A common hereditary disease in which (secretory) produce abnormally thick . This mucus can cause problems in , breathing, and body cooling.
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Tests for Cystic Fibrosis (CF)
Doctors diagnose (CF) based on the results from various tests.
Newborn Screening
All States screen newborns for CF using a or a . The genetic test shows whether a newborn has faulty CFTR . The blood test shows whether a newborn’s is working properly.
Test
If a or suggests CF, a doctor will confirm the diagnosis using a test. This test is the most useful test for diagnosing CF. A sweat test measures the amount of salt in sweat.
For this test, the doctor triggers sweating on a small patch of on an or leg. He or she rubs the skin with a -producing chemical and then uses an electrode to provide a mild electrical current. This may cause a tingling or warm feeling.
is collected on a pad or paper and then analyzed. The sweat test usually is done twice. High salt levels confirm a diagnosis of…