ESTIM Flashcards

(40 cards)

1
Q

what does the pt feel

A

the current

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2
Q

pulsed curent

A

starts and stops

rapid on and off - excites the nerve and muscle

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3
Q

monophasic

A

current flow in one direction

leave charge in the tissue - polar effect

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4
Q

biphasic

A

the current flows in two direction

no net current left

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5
Q

continuous current - effect

A

there is no neuromuscular effect

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6
Q

pulse width

A

duration

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7
Q

pulse amp

A

intensity

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8
Q

pulse rate

A

freq

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9
Q

what is a phase

A

current flow in a single direction

a pulse may have one or more phases

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10
Q

what is pulse duration

A

sum of time for all phases of the pulse

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11
Q

what happens when we increase pulse duration

A

increases the recruitment of nerve fibers of progressively smaller size

more motor unit recruited

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12
Q

what is pulse amp

A

intensity of the stimulus

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13
Q

what happens with we increase pulse amp

A

increase the depth of stimulation - recruit more nerve fibers of the same size

greater the amp - more more units recruited

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14
Q

what happens with greater pulse duration and peak amp

A

more painful stim - discomfort

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15
Q

what is pulse rate

A

the rep. of each pulse

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16
Q

what happen as pulse rate increases

A

the firing rate of a nerve incerase

more motor units fire more freq.

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17
Q

1-10 pps

18
Q

10-30 pps

A

unfused tetany

19
Q

=>30 pps

A

tentatic muscle contraction

20
Q

what is the edge effect

A

current takes the shortest path between electrodes

closer electrode less deep

21
Q

what is Motor Point

A

the point where the muscle is at its highest excitability

22
Q

what is a surge

A

ramp to peak intensity also ramp to decrease

23
Q

what is a muscle twtich

A

a brief, sudden muscle movement

24
Q

tetany

A

involuntary muscle contractions and overly stimulated peripheral nerves

25
what are estim contra
DVT hemorraghe pregnant uterus eyes, uterus, carotid sinus, head, reproductive organs impaired cognition or communication regenrating nerves damaged or at risk skin infection maligancy recently radiated tissue impaired sensation
26
who is a candidate for nmes
disuse atrophy steriod induced myopathy aging-related changes post-surgery, reflex inhibition UMN insult
27
what is NMES indicated for
muscle reduction - poor requiretment and inadiquet motor control
28
tens - gate control theory
estim provides a counter irritant to pain that closes the gait on pain preception
29
endogenous opioid theory - tens
delivery at a noxious level to promotes the release of endogenous opioids
30
tens at the sensory level do we see muscular cocntraction
no
31
tens sensory level -
short pulse duration at a high rate low intensity counter irritant
32
TENS sensory is for what kind of pain
acute pain
33
sensory tens what kind of nerve fibers
superficial large diamter
34
tens at the motor level what kind of motor contraction
twitch
35
tens at the motor level is used for what kind of pain
subacute/acute
36
motor level tens - characteristics
long duration and low rate
37
tens noxious level - characteristic
long duration and low rate high intensity
38
tens noxious level - releases what
endogenous opiates
39
tens noxious level - muscle contraction
painful stimulus
40
muscle contraction