ASIA Exam Flashcards
Which pathway controls light touch?
dorsal column
Which pathway controls sharp/dull?
anterolateral
C5 muscle
elbow flexors
C6 muscles
wrist extensors
C7 muscles
elbow extensors
C8 muscles
finger flexors
T1 muscles
finger abduction (little finger)
L2 muscles
hip flexors
L3 muscles
knee extensors
L4 muscles
ankle DF
L5 muscles
long toe extensors
S1 muscles
ankle PF
How to determine most caudal motor function?
lowest segment with motor grade 3 or better AND all segments above are a 5
sensory components of rectal exam
peri-anal sensation and deep anal pressure
motor components of rectal exam
voluntary anal contraction
T/F: ASI-A may have zones of partial preservations
true
- they do not change prognosis of the patient and are usually insignificant in ASI-A
T/F: All motor and sensory ZPP should be documented
false
- motor ZPP should be documented in all cases
- sensory ZPP documented in the absence of sensory function in S4/5
ASI-B classification
- sensory but no motor function AND includes the sacral segments S4/5
- No motor function is preserved more than 3 levels below the motor level
ASI-C classification
- motor function is preserved at most caudal sacral segments for voluntary anal contraction OR
- sparing of motor functions more than 3 levels below ipsilateral motor level
- LESS than 1/2 of key muscle functions below NLI have muscle grade >/= 3
ASI-D classification
- at least an ASI- C AND
- at least 1/2 or more of key muscle functions below NLI have muscle grade >/= 3
