Basic nerve conduction studies are contingent upon the Professionals conducting the studies and the equipment they use. Also this alternative factor CAN come into play....
http://www.onecallmedical.com/PDFs/E...0ISSUE%205.pdf
These basic tests lead up to the qusart testings... but there ARE aspects that are clearly key to what all could call 'good tests'!
Because of so many professional, mechanical and environmental factors, be prepared with any new doc you see...that they will want tests of their own. To the docs? This is a way to see the issues under controls that they are familiar with.
As for key SFN issue, could you elaborate? Like are you sweating less? or More? Has your skin become abnormally dry or super oily [tho dry is the usual symptom, it's not exclusive] IF so... take a look at this site [it's up in the 'stickies' I believe, but, DO read the intro to see how the vascular system is connected to the nerve and lymphatic system and what it all can mean....while this site is for Diabetics? There are many, many connections to what anyone with neuropathy has - Go to the "Diabetes in Skin Disease' Section and click on.... go from there. It's very informative!
Just remember? That how tests are read are only as good as both the testors and the readers of such tests! And, yes! It is a heap of a lot of 'subjective'? But still, numbers are numbers...and another doc mite read those numbers a bit to a lot differently. Be sure to get copies of these tests so should you choose to get a second opinion? They've some sort of base/basis to go on.... Never hurts, you know?
Good luck! And, keep faith and hope that something GOOD will result!

Westie? Some neuro's seem very primitive? See this site [click on the blue] for a clue as to ALL they mite be looking for:
http://www.neuroexam.com/content.php?p=2

Hope for all, please, don't lose it! Treat NOW and avoid all the dreaded worst, if possible! Hope again - j