hi melissa, ive never heard of one, i think that may well be the one test i havent had done. :P
Well i guess if they suggest one, i know what to expect now so thank you

...oh, and with your shunt valve...the pump part, is that the bulb part?
im really confused with it all, with my old shunt i had a little squishy part on the straight part behind my ear.
with my new shunt it doesnt have that, and ive heard that the bulb, the reservior can be used as the pump, but it barely seems pressable, its just a hard lump.
the structure of my new shunt feels so strange compared to my old one, my old one felt like its was all one part, this one feels like it stops and starts, lumps rising and falling