You might question the dr about exactly why they are wanting to do the EMG.
To check for, confirm or rule out a pinched nerve?

Has your RSD or symptoms changed or new symptoms?
Near or downstream from a joint or spinal issues in question?

Maybe do bone scan first and see what that shows?
Is the neurologist RSD/CRPS knowledgeable?
They may say they are.. but maybe not...

You might search our site to find past posts on EMG.. but our search needs more than 3 letters.. maybe EMG/NCV or EMG test, or spell it out...