About Sweat Testing

This test is used to diagnose Cystic Fibrosis. A chemical is applied to the arm to stimulate the sweat glands to be more active. Sweat is then collected for 30 minutes, and the amount of salt in the sweat is then measured. This test is not painful, but produces a tingling 'pins and needles' feeling in the arm.

Young girl

Why Choose CHOP for CF Care

The Cystic Fibrosis Center at Children's Hospital of Philadelphia is accredited for care, teaching and research by the Cystic Fibrosis Foundation.

Two young girls smiling

Your Child's CF Center Visit

During each visit to the Cystic Fibrosis Center, your child may see a number of multidisciplinary experts. Learn about the care they provide.