Podcast 5

Question 1

PNS conduction exam

Answer 1

Sensory/motor/reflex tests in innervation field of suspected nerve
Tests: nerve conduction impulse and not pain
If pain it is not positive for nerve involvement

Question 2

Principle one: muscle weakness testing

Answer 2

Isometric Tests:

• Nerve root (myatomes)
• PN: all muscles innervated by PN
• Plexus: all muscles innervated by PN from plexus

Maximum contraction
do you resisted Isometric contraction
Oxford scale: weakness due to PN injury

Question 3

Name three functional test

Answer 3

1) Walking on heels (L5 - toe E / L4- DF) and peroneal n
2) Walking on toes (PF- S2 and tibialis n)
3) Eversion( S1 and superficial peroneal nerve)

Question 4

What to observe when doing functional tests

Answer 4

Atrophy
weakness
tremor
Fasciculation

Question 5

Compare to surrounding nerves

Answer 5

For NR: compare to one level up and down

PN: test muscle supplied by suspected nerve

Question 6

What can weakness indicate

Answer 6

Lesion of spinal canal
lesion of muscle supplied by muscle
muscle lesion

Question 7

Principal 2:sensory testing

Answer 7

Indicate type of pain

Assess PN and RN

Question 8

Tests for after interview/UMNL

Answer 8

sensation:
Electrotherapy
Orthopaedic exam (NR/ cauda )
Neuro exam(PN)
Neurological exam (UMNL)

Other sensory tests: CNS
Proprioception
tactile discrimination