Sweat Test

A sweat test is used to diagnose cystic fibrosis. During the test, medicine that causes sweating is applied with a gauze pad to either the arm or the thigh. A mild electrical current pushes the medicine into the skin to cause the child to sweat. The sweat is collected, and then the salt content of the sweat (sodium…

Sweat Test

Picture of the sweat test procedure

A sweat test is used to diagnose cystic fibrosis. During the test, medicine that causes sweating is applied with a gauze pad to either the arm or the thigh. A mild electrical current pushes the medicine into the skin to cause the child to sweat. The sweat is collected, and then the salt content of the sweat (sodium and/or chloride) is measured.

Current as ofDecember 12, 2018

Author: Healthwise Staff
John Pope, MD, MPH - Pediatrics
Kathleen Romito, MD - Family Medicine
R. Steven Tharratt, MD, FACP, FCCP - Pulmonology, Critical Care Medicine

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