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A member asked:
How frequent are false positives on cystic fibrosis tests?
A doctor has provided 1 answer
As high as 15%: The sweat chloride test is still the gold standard diagnostic test for cystic fibrosis. The accuracy of this test is highly dependent on the method used and the lab it is performed in. I only trust a result that is performed in a center that is certified by the cystic fibrosis foundation. Some reasons for false positives include: lab error, malnutrition, & eczema.
Answered 4/8/2015
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