I just looked it up.
http://www.tlcdiagnostics.com/patien.../ansar-testing Interesting--it suggests that your autonomic nervous system is out of balance. Couldn't this just be due to the RSD, rather than a symptom of something more serious? I don't know. Try not to worry too much; I'm sure they will do more tests to rule out anything serious. It sounds like this test can identify problems in the early stage, too, where treatment might be more effective, so that's reassuring.