“…Control of the sweating mechanism is not well understood. Although there seems to be no doubt that increased elimination of sodium and chloride occurs regularly in pancreatic cystic fibrosis and that this disorder is seen in adult patients (5), the finding of an increase in sweat chloride concentration is not diagnostic of cystic fibrosis. Toigo et al (3) studied 5 emphysematous patients with high sweat chloride concentration, using radioactive triolein.…”