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SCS > SCS foundations > Flashcards

SCS foundations Flashcards

1
Q

Carries sensory impulses to the brain

A

Dorsal root

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2
Q

Dermatome serves neck, shoulders, and portions of the upper limbs

A

Cervical dermatomes

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3
Q

Dermatome serves trunk of the body and the upper limbs

A

Thoracic dermatome

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4
Q

Dermatome serves anterior legs

A

Lumbar dermatome

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5
Q

Dermatome serves buttocks and posterior legs

A

Sacral dermatomes

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6
Q

SCS consists of three parts:

A

Electrodes on one or more leads
Power source
An extension (optional for some)

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7
Q

Describes how non painful input closes the gate to painful input, explains in the prevention of pain sensation traveling from the CNS to the brain

A

Gate control theory

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8
Q

Sensory receptors

A

Nociceptors

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9
Q

Afferent fibers, are the largest in size, are myelinated and have the fastest conductive velocity

A

A-alpha and A-beta

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10
Q

3 components required to create a closed electrical circuit

A

Power source
Conductor
Resistance

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11
Q

Measure of work needed to move an electrical charge

A

Voltage

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12
Q

Strength or height of a wave disturbance such as an electromagnetic wave

A

Amplitude (voltage or current (I))

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13
Q

Flow of electrons pushed through a circuit over time

A

Current (Amperes)

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14
Q

The inhibition of the flow of electrons in a circuit

A

Resistance (ohms)

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15
Q

Ohms law

A

V= I (amps) x R (resistance)

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16
Q

Impedance is a result of a variety of factors:

A

Material resistance (leads,extensions)
Scar tissue
Fluid (CSF)

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17
Q

Region directly beneath the bony and ligamentous elements forming the vertebral canal

A

Epidural space

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18
Q

Space which surrounds the spinal cord and lies between the pis and arachnoid mater containing CSF

A

Intrathecal space

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19
Q

Ohms law describes relationship between:

A

Voltage
Current
Resistance

20
Q

Duration of stimulation

A

Pulse width

21
Q

Process by which the nervous system senses and transmits pain signals to the brain

A

Central pain pathway

22
Q

Sensory neurons sensitive to painful stimuli

A

Nociceptors

23
Q

Most commonly indicated condition for SCS

A

FBSS

24
Q

Electricity is the flow of electrons from

A

Cathode to anode

25
Q

Activation of an axon will take place only when stimulation is at a point on or above:

A

The action potential

26
Q

Minimum amplitude that can excite an axon

A

Rheobase

27
Q

Minimum pulse width that can excite an axon

A

Chronaxie

28
Q

Four components of pain

A

Nociception
Perception of pain
Suffering
Pain behaviors

29
Q

Indications for SCS

A 
P (postlami)
U (unsuccessful disk surg)
M (multiple back ops)
P (peripheral causalgia)
E (epidural fibrosis)
D (DDD)
F (FBS)
R (radicular pain syndrome)
A (arachnoiditis)
C (CRPS)
30
Q

Carries motor impulses from the brain

A

Ventral root

31
Q

What is electrical stimulation?

A

The use of small electrical signals to produce a predictable, controllable outcome

32
Q

The strength of pulses in volts

A

Amplitude

33
Q

The duration of a pulse in microseconds

A

Pulse width

34
Q

The frequency of pulses per second in hertz

A

Rate

35
Q

What type of pain responds most favorably to SCS?

A

Neuropathic

36
Q

Specific combination of pulse width, rate, and amplitude acting on a specific electrode combination

A

Program

37
Q

The inhibition of the flow of electrons

A

Resistance

38
Q

Experienced as the intensity of parasthesia

A

Amplitude

39
Q

The number of electrons pushed through a circuit over time

A

Current (amps)

40
Q

Experienced as the breadth of coverage of parasthesia

A

Pulse width

41
Q

In an open circuit, impedance is ______ and current is ______

A

High, low

42
Q

(ENS) each group can accommodate ______ programs with a maximum of ______ programs

A

4, 16

43
Q

Let’s the patient change the amplitude of all programs in an active group at the same time using myStim

A

GroupAdjust

44
Q

Automatically turns specific groups ON and OFF at programmed times based on a 24 hour clock

A

Scheduled therapy

45
Q

Electrical potential between two points in a circuit

A

Voltage

SCS (1 decks)

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