Sweat Chloride Testing

Sweat chloride test is a common and simple test used to evaluate a patient who is suspected of having cystic fibrosis. The sweat test determines the amount of chloride in the sweat. There are no needles involved in the procedure. The goal of this test is to painlessly stimulate the patient’s skin to produce a large enough amount of sweat which may then absorbed by a special filter paper and analyzed for the content of chloride in the sweat.

The entire collection procedure takes approximately half an hour to an hour.