EMG Figueroa Flashcards
1
Q
EMG Axons cut
A
Higher frequency of firing
Eventually dendrites extend = higher amplitude
End product - large rapidly firing motor units
2
Q
EDX tells us
A
WHERE neurologic lesion is but not WHAT is causing it
3
Q
CNS SX to bottom half of body
A
spinal cord injury
4
Q
CNS SX scattered all over
A
MS
5
Q
Nerve root lesion
A
weakness of multiple muscles with same root of innervation
6
Q
Terminal branch lesion
A
weakness of one nerve distribution (even multiple roots)
7
Q
Plexus lesion
A
weakness include multiple nerve roots and multiple nerves
8
Q
Peripheral neuropathy
A
weakness if stocking/glove or all over
9
Q
Myopathy
A
weakness is proximal distribution, bilateral wiht sparing of distal muscle
10
Q
L2 L3 L4 L5 S1
A
L2 - hip flexion L3 - knee extension L4 - ankle dorsiflexion L5 - big toe extension S1 - ankle plantarflexion
11
Q
UMN signs
A
Spastic paralysis Hyperreflexia Spasticity Clonus Babinsky/Hoffman Sensory loss
12
Q
LMN signs
A
Flaccid paralysis Hyporeflexia Atrophy Sensory loss Fasciculations
13
Q
Four muscles to test strength
A
Upper trapezius
Triceps
Quads
Gastroc
14
Q
Strength scale
A
5 - full ROM/strength 4 - full ROM w/ less strength 3 - full ROM against gravity only 2 - full ROM w/out gravity 1 - no joint motion, slight contraction 0 - no joint motion or contraction
15
Q
Reflex testing
A
0 - Areflexia 1 - hyporeflexia 2 - normal reflex 3 - hyperreflexia 4 - clonus
