Does anyone know what the normal results range for each of the 4 QSART testing spots(wrist, knee, ankle, foot) are in microliters? I have a printout of the QSART screen with my results and a statement in the comments section of the attached report that says :"The QSART,a measure of postganglionic sympathetic sudomotor function is absent from the foot." However, I am curious as to what a 'normal' result is. It's been a few years since I had this test and I can't ask the doctor who oversaw it as he was not interested in providing any follow up care. Any help is greatly appreciated!