How is the sweat test done?
The sweat test is simple and should not hurt your baby. If you yourself were to have a sweat test, your skin might feel warm and tingly for about five minutes during the test. Before the test, the technician will apply a chemical that causes sweating to a small area on your baby’s arm or leg. Then, an electrode is attached, and the area is stimulated to cause sweating. Your baby’s sweat is collected on a piece of gauze or filter paper, or in a plastic coil. The collected sweat is sent to the CF lab and tested. It takes about one hour from start to finish.
