At a Glance
Why Get Tested?
To diagnose cystic fibrosis (CF)
When to Get Tested?
When a person has symptoms that suggest CF; as a follow-up, confirmatory test to help diagnose CF
A sweat sample collected using a special sweat stimulation procedure
Test Preparation Needed?
None; however, you may be instructed to avoid applying creams or lotions to your skin 24 hours before the test.