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Table 8 Current densities (electrode with 3 cm of diameter)

From: Pulsed direct and constant direct currents in the pilocarpine iontophoresis sweat chloride test

Current (mA)

Current density (mA/cm2)

% volume of sweat above 54 mg*

0.5

0.07

12/12 (100%)

0.75

0.12

12/12 (100%)

1.0

0.14

12/12 (100%)

1.5

0.21

12/12 (100%)

  1. *The adequate sweat rate was considered for an area practically of 18 cm2 and 30 min of sweat stimulation. For the classical Gibson & Cooke test, the area considered was related of a 5.5 cm diameter filter paper with 30 min of stimulation, and the 75 mg criteria was used as the gold standard for the sweat.
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BMC Pulmonary Medicine

ISSN: 1471-2466

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