A method of performing the test for chloride or sodium in the sweat of patients with cystic fibrosis of the pancreas is presented. It utilizes pilocarpine by iontophoresis and has the advantage of being both rapid and painless. Data are presented to show that the method is reliable.
- Received July 30, 1958.
- Accepted September 30, 1958.
- Copyright © 1959 by the American Academy of Pediatrics