1 Also take a break from high-fiber foods, spicy foods, dairy products, and foods known to cause gas, such as beans, broccoli, and cabbage. 2  Wash your hands. 3  When you have diarrhea, wash even more often than normal, especially after going to the bathroom and before eating.
Quantitative Sudomotor Axon Reflex Test (QSART) What is the quantitative sudomotor axon reflex test (QSART)? The QSART is a test that measures the autonomic nerves that control sweating. The test is useful in assessing autonomic nervous system disorders, peripheral neuropathies, and some types of pain disorders.
Testing of autonomic nervous system function; sudomotor, including 1 or more of the following: quantitative sudomotor axon reflex test (QSART), silastic sweat imprint, thermoregulatory sweat test, and changes in sympathetic skin potential.he quantitative sudomotor axon reflex test (QSART) evaluates integrity of postganglionic neurons using iontophoresis; electrodes filled with acetylcholine are placed on the legs and wrist to stimulate sweat glands, and the volume of sweat is then measured.