ASIA Exam

Question 1

Which pathway controls light touch?

Answer 1

dorsal column

Question 2

Which pathway controls sharp/dull?

Answer 2

anterolateral

Question 3

C5 muscle

Answer 3

elbow flexors

Question 4

C6 muscles

Answer 4

wrist extensors

Question 5

C7 muscles

Answer 5

elbow extensors

Question 6

C8 muscles

Answer 6

finger flexors

Question 7

T1 muscles

Answer 7

finger abduction (little finger)

Question 8

L2 muscles

Answer 8

hip flexors

Question 9

L3 muscles

Answer 9

knee extensors

Question 10

L4 muscles

Answer 10

ankle DF

Question 11

L5 muscles

Answer 11

long toe extensors

Question 12

S1 muscles

Answer 12

ankle PF

Question 13

How to determine most caudal motor function?

Answer 13

lowest segment with motor grade 3 or better AND all segments above are a 5

Question 14

sensory components of rectal exam

Answer 14

peri-anal sensation and deep anal pressure

Question 15

motor components of rectal exam

Answer 15

voluntary anal contraction

Question 16

T/F: ASI-A may have zones of partial preservations

Answer 16

true
- they do not change prognosis of the patient and are usually insignificant in ASI-A

Question 17

T/F: All motor and sensory ZPP should be documented

Answer 17

false
- motor ZPP should be documented in all cases
- sensory ZPP documented in the absence of sensory function in S4/5

Question 18

ASI-B classification

Answer 18

• 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

Question 19

ASI-C classification

Answer 19

• 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

Question 20

ASI-D classification

Answer 20

• at least an ASI- C AND
• at least 1/2 or more of key muscle functions below NLI have muscle grade >/= 3