tests that assess sudomotor dysfunctio
QSART and TST
abnormal QSART and TST
postganglionic dysfunction
normal QSART and abnormal TST
preganglionic dysfunction
where are the cell bodies in preganglionic sympathetic NS located
intermediolateral columns of spinal cord
NT in preganglionic sympathic fibers
ACH
NT in postganglionic sympathic fibers
NE
NT in preganglionic and postganglionic parasympathetic fibers
ACH
where are parasympathetic fibers exiting through
CN III, VII, IX and X and sacral roots 2-4
QSART tests integrity of what
sympathethic postganglionic sudomotor axons
TST test integrity of what
entire afferent and efferent sudomotor system including central and peripheral sympathetic sudomotor components
*assesss for lesion anywhere from hyopothalamus to eccrine sweat galnds
how do conduct TST
-temperature controlled room
-indicator dye is used *alizarin red S
-core temp is increased to a max of 38.5 C
where is the usual site of skin biopsy
lateral distal leg
skin biopsy checks for
small fiber sensory nerves
QSART checks for
small fiber motor nerves
electrochemical skin conductance measures what
changes in the [ ] of swear chloride
what is the stimulus in electrochemical skin conductance test
electrical current
normal HR response to deep inspiration
increase HR
normal HR response to deep expiration
decrease HR
