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Quantitative sudomotor axon reflex testing (QSART) sweating response

There is a progressive length-dependent decrease in sweat volume obtained from the lower extremity of a patient with autonomic neuropathy. The sweat response in the forearm is normal. (Contributed by Dr. James W Russell.)

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  • Lambert-Eaton myasthenic syndrome
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  • Rheumatoid arthritis
  • Sjogren syndrome
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