it depends why you are having it done. I suddenly had trouble lifting my left leg, so I needed to have the nerves in my hip done to see if it was the neuropathy affecting my hip, or something else. It was the neuropathy. Also, having had my hands/arms done has indicated that the motor problems that I have with my hands at this stage are central rather than peripheral in nature. It has always shown that I am not far away from having neuropathy in my hands as my results are heading out of the normal range (sensorimotor axonal neuropathy).

So, sometimes it is more than just showing progression. Sometimes it is to dx what is going on, and this can need doing even once an initial dx of neuropathy has been made as not all issues can be blames on the neuropathy.

cheers
raglet