iontophoretic pilocarpine test [Gk, ienai + pherein, to carry] , a sweat test used in the diagnosis of cystic fibrosis. Pilocarpine iontophoresis is used to stimulate production of sweat, which is absorbed from the forearm in a previously weighed gauze pad. The sweat sample is then analyzed for concentrations of sodium and chloride electrolytes.
