The sweat electrolyte test is a test that measures the level of chloride in sweat. In children, increased sodium and chloride concentrations in sweat can indicate cystic fibrosis, an inherited disease that affects the respiratory and digestive system.
Review Date 4/4/2019
Updated by: Liora C. Adler, MD, Pediatric Emergency Medicine, Joe DiMaggio Children's Hospital, Hollywood, FL. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.