ENMG

Question 1

EMG is used for —– reasons

Answer 1

therapeutic

Question 2

ENMG purpose

Answer 2

determine location and severity of impairment
Does NOT determine actual cause

Question 3

Axon degeneration- timeline

Answer 3

seen 3 weeks post injury

Question 4

Segmental demyelination what is it

Answer 4

focal conduction abnormality

Question 5

clinical manifestations of segmental demyelination and Axon degeneration

Answer 5

Weakness, pain and sensory issues

Question 6

precautions ENMG

Answer 6

pacemakers, blood thinners, blood-transmittable diseases (universal precautions)

Question 7

common nerves used in ENMG

Answer 7

Median nerve and Abductor pollicis brevis typically uses

Question 8

H-reflex looks at

Answer 8

peripheral nerve dysfunction

Question 9

F-reflex looks at

Answer 9

CNS/ nerves closer/proximal to spinal cord

Question 10

Axon denervation seen in what condition

Answer 10

radiculopathy, herniated disk

Question 11

Axon Demyelination seen in what condition

Answer 11

Carpal tunnel syndrome

Question 12

Demyelination 2 characteristics

Answer 12

1. longer latency periods
2. decreased amplitude

Question 13

Axon degeneration seen in what condition

Answer 13

radiculopathy
herniated disk
SHORTER latency periods

Question 14

Minimal activation assesses

Answer 14

motor units volitionally recruited by patient

Question 15

Maximal activation assesses

Answer 15

Determines neuropathic/myopathic recruitment patterns

Question 16

ENMG used to determine this kind of nerve injury

Answer 16

axonotmesis ( peripheral n. injury)