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Autoimmune Dysautonomia Evaluation


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Thermoregulatory Sweat Testing

Slide 9

February 2011

By way of example, to illustrate some of the abnormalities that can be found in dysautonomia, I have some pictures from sweat testing. These images represent the degree of sweat loss in individual patients. A powder that changes color with sweating is applied all over the body, but spares the face. If the patient sweats normally the indicator powder changes to a purple color. The far left panel you can see has normal sweating throughout. The patient in the middle has evidence of more patchy hypohidrosis, particularly in the lower extremities whereas the patient on the far right side of the screen has widespread sweat loss or hypohidrosis affecting nearly the whole body. This is just to illustrate the varying degrees of dysautonomia that can be seen with these disorders.

Thermoregulatory Sweat Testing


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