Part 2

Question 1

Monophonic current uses what specific type of current?

Answer 1

DIRECT

Question 2

What is another name for monophasic current ?

Answer 2

Galvanic

Question 3

Current flow in one direction is a characteristic of what?

Answer 3

Monophasic current

Question 4

Biphasic current uses what specific type of current?

Answer 4

Alternating (AC)

Question 5

What type of currents flow of electrons changes direction regularly?

Answer 5

Biphasic

Question 6

What is the time it takes current to leave the isoelectric line to when it returns to this line called?

Answer 6

Phase duration

Question 7

What is the phase duration for monophasic ?

Answer 7

Phase duration and pulse duration are the same

Question 8

What is the phase duration in biphasic ?

Answer 8

two phase durations for each pulse

Question 9

High peak current is associated with what?

Answer 9

Greater depth of penetration (leads to more muscle recruitment)

Question 10

Do large diameter nerves have a high or low capacitance?

Answer 10

Low (reach threshold quickly)

Question 11

Do tissues respond to phase duration or pulse duration?

Answer 11

Phase duration

Question 12

The intensity or magnitude of the current is know as?

Answer 12

Amplitude

Question 13

What is the maximum amplitude of the current REGARDLESS of duration?

Answer 13

Peak current

Question 14

Amplitude must be high enough to….?

Answer 14

Reach threshold of muscle or nerve

Question 15

Amplitude is high enough to reach threshold of a nerve or muscle what responds first ?

Answer 15

Sensory

Question 16

What two things does average current take into consideration?

Answer 16

Peak amplitude and phase duration

Question 17

How do you alter the phase charge?

Answer 17

Amplitude and phase duration

Question 18

What fibers are stimulated first A-beta or A-alpha?

Answer 18

A-beta

Question 19

What fibers must be initiated for a muscle to contract?

Answer 19

A-Alpha (motor fiber)

Question 20

A burning or needling sensation during therapy signals what?

Answer 20

You have exceeded the a delta fiber capacitance

Question 21

The time required to depolarize a never fiber when the peak current is twice rheobase is known as what ?

Answer 21

Chronaxie

Question 22

When amplitude is _______ rheobase and the phase duration is _____ ________ than chronaxie the rudest will be greatest comfort to the patient/

Answer 22

Twice, slightly greater

Question 23

What is the rate limiting factor of the number of impulse that can be generated by a nerve known as?

Answer 23

Absolute refactor period

Question 24

Stimulation at high frequency near refractory period of the sensory never causes inhibition known as?

Answer 24

Wedenskis inhibition

Question 25

What leads to summation?

Answer 25

Higher frequency

Question 26

What is the hz in wedenskis inhibition?

Answer 26

>1000

Question 27

What is the hz for low frequency generators and what does it do?

Answer 27

1000, Produce action potentials

Question 28

What are medium frequency generators IN hz?

Answer 28

1000-100,000

Question 29

Interferential current uses what hz range?

Answer 29

3,000-5000

Question 30

Russian stimulation uses a carrier frequency of what?

Answer 30

2,500

Question 31

Intrinsic duty cycle of 10ms on and 50 ms off creates what?

Answer 31

A burst frequency of 50hz

Question 32

What is the hz range for high frequency ?

Answer 32

<100,000

Question 33

High frequency generators are used for what/

Answer 33

Thermal (heat)

Question 34

Diathermy uses high frequency and creates what?

Answer 34

Minimal sensory deficits

Question 35

Unequal electrode size will concentrate the current in which electrode?

Answer 35

The smaller one

Question 36

What would you do to concentrate the current in superficial tissues?

Answer 36

You'd places the electrodes close together

Question 37

Monoploar uses how may electrodes?

Answer 37

2 unequal sized electrodes

Question 38

Does monopolar use AC or DC current?

Answer 38

Either one

Question 39

If resistance increases, what will n emended to get the same current flow?

Answer 39

More voltage

Question 40

Is monopolar active at the target site?

Answer 40

Yes | Dispersive away from target site

Question 41

What is the most common electrode configuration for TENS?

Answer 41

Bipolar

Question 42

What do the electrodes look like in bipolar?

Answer 42

2 equal sized electrodes over the treatment site

Question 43

What kind of configuration is seen with interferential current?

Answer 43

Quadripolar

Question 44

What is the configuration for quadripolar?

Answer 44

2 separate medium frequency currents with electrodes placed at cross currents

Question 45

What are things associated with interferential current?

Answer 45

Also called IF IFC, true interferential, pre modulated-vector scar stereodynamic