Sweat Test

Sweat Test

Sweat Test


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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 of: August 21, 2019

Author: Healthwise Staff

John Pope, MD, MPH - Pediatrics

Kathleen Romito, MD - Family Medicine

R. Steven Tharratt, MD, FACP, FCCP - Pulmonology, Critical Care Medicine