SCS foundations

Question 1

Carries sensory impulses to the brain

Answer 1

Dorsal root

Question 2

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

Answer 2

Cervical dermatomes

Question 3

Dermatome serves trunk of the body and the upper limbs

Answer 3

Thoracic dermatome

Question 4

Dermatome serves anterior legs

Answer 4

Lumbar dermatome

Question 5

Dermatome serves buttocks and posterior legs

Answer 5

Sacral dermatomes

Question 6

SCS consists of three parts:

Answer 6

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

Question 7

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

Answer 7

Gate control theory

Question 8

Sensory receptors

Answer 8

Nociceptors

Question 9

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

Answer 9

A-alpha and A-beta

Question 10

3 components required to create a closed electrical circuit

Answer 10

Power source
Conductor
Resistance

Question 11

Measure of work needed to move an electrical charge

Answer 11

Voltage

Question 12

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

Answer 12

Amplitude (voltage or current (I))

Question 13

Flow of electrons pushed through a circuit over time

Answer 13

Current (Amperes)

Question 14

The inhibition of the flow of electrons in a circuit

Answer 14

Resistance (ohms)

Question 15

Ohms law

Answer 15

V= I (amps) x R (resistance)

Question 16

Impedance is a result of a variety of factors:

Answer 16

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

Question 17

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

Answer 17

Epidural space

Question 18

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

Answer 18

Intrathecal space

Question 19

Ohms law describes relationship between:

Answer 19

Voltage
Current
Resistance

Question 20

Duration of stimulation

Answer 20

Pulse width

Question 21

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

Answer 21

Central pain pathway

Question 22

Sensory neurons sensitive to painful stimuli

Answer 22

Nociceptors

Question 23

Most commonly indicated condition for SCS

Answer 23

FBSS

Question 24

Electricity is the flow of electrons from

Answer 24

Cathode to anode

Question 25

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

Answer 25

The action potential

Question 26

Minimum amplitude that can excite an axon

Answer 26

Rheobase

Question 27

Minimum pulse width that can excite an axon

Answer 27

Chronaxie

Question 28

Four components of pain

Answer 28

Nociception Perception of pain Suffering Pain behaviors

Question 29

Indications for SCS

Answer 29

``` 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) ```

Question 30

Carries motor impulses from the brain

Answer 30

Ventral root

Question 31

What is electrical stimulation?

Answer 31

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

Question 32

The strength of pulses in volts

Answer 32

Amplitude

Question 33

The duration of a pulse in microseconds

Answer 33

Pulse width

Question 34

The frequency of pulses per second in hertz

Answer 34

Rate

Question 35

What type of pain responds most favorably to SCS?

Answer 35

Neuropathic

Question 36

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

Answer 36

Program

Question 37

The inhibition of the flow of electrons

Answer 37

Resistance

Question 38

Experienced as the intensity of parasthesia

Answer 38

Amplitude

Question 39

The number of electrons pushed through a circuit over time

Answer 39

Current (amps)

Question 40

Experienced as the breadth of coverage of parasthesia

Answer 40

Pulse width

Question 41

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

Answer 41

High, low

Question 42

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

Answer 42

4, 16

Question 43

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

Answer 43

GroupAdjust

Question 44

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

Answer 44

Scheduled therapy

Question 45

Electrical potential between two points in a circuit

Answer 45

Voltage