I think my evoked potential tests took about
a week. I actually got copies from my PCP before I heard from the neurologist.
the LP, I've heard stories on both sides of the fence - some with bad experiences, others with good. I guess it's just a matter of individuality. Personally, I think that was probably the easiest test I've ever had. Lying flat on my back all day was far worse than the procedure itself. I'd rather have a thousand LPs rather than just one MRI! (I have claustrophobia - caused by my first MRI.)
Living in Limboland!