Which lab tests are performed in the workup of complex regional pain syndrome (CRPS)?

Updated: Nov 08, 2018
  • Author: Steven J Parrillo, DO, FACOEP, FACEP; Chief Editor: Andrew K Chang, MD, MS  more...
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  • A single, reliable, sensitive, and specific diagnostic test for reflex sympathetic dystrophy syndrome (RSDS) is not available.

  • Quantitative sensory testing and quantitative sudomotor axon reflex test (QSART) may be performed to look for sensory and sweating abnormalities. [35]

  • And as noted above, experts agree that diagnostic studies are not necessary to make the diagnosis. [27, 28]

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