The operator should be notified if patient feels a burning sensation. The operator will stop the test and see if the electrodes are positioned properly. Right arm or thigh is washed and dried. Pad with pilocarpine and pad with salt solution are placed on electrodes, which are attached to the arm or thigh. Sweat is forced with mild electric shocks, by using a battery powered unit that do not harm the patient or the accompanied persons.
Sweat is collected with pad or filter paper after electrodes are removed.
Immediate post-test care Area tested with electrodes is washed with soap and water and dried thoroughly. The patient can resume his normal activities after the test. If the area where the electrodes were placed looks red, redness disappears in a few hours. Test values - Test results are determined by special electrolyte analyzer. May suggest cystic fibrosis.