... Why get tested?
To diagnose cystic fibrosis (CF)

When to get tested?
When a newborn or infant has symptoms that suggest CF, such as frequent respiratory infections and chronic cough, persistent diarrhea, foul-smelling bulky greasy stools, and malnutrition; and as a follow-up, confirmatory test to help diagnose CF

Sample required?
A sweat sample collected using a special sweat stimulation procedure
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