Week 3: Ch.11 (Intro to Electrotherapy)

Question 1

Electrical Current

Answer 1

Flow of charged particles

Question 2

Waveforms

Answer 2

Direct, Alternating, Pulse

Question 3

Cathode

Answer 3

Negative Electrode

Question 4

Anode

Answer 4

Positive Electrode

Question 5

Current

Answer 5

Flow of a charge

Question 6

Direct current flows? (DC)

Answer 6

• One Direction
• stores charge

Question 7

Alternating current flows? (AC)

Answer 7

• Continuous
• Pain Control
• Muscle Contraction

Question 8

Pulsed current flows?

Answer 8

• Interruption of flow
• Pain Control
• Tissue Healing
• Muscle Contraction

Question 9

Monophasic pulsed current flows? (HVPC)

Answer 9

• High Volt Pulsed Current
• Control Acute Edema
• Promote Tissue Healing

Question 10

Biphasic Pulsed Current

Answer 10

• A-Biphasic, B-Biphasic, C-Unbalanced
• Control Pain
• Produce Muscel Contraction
• Most used

Question 11

A-Biphasic is?

Answer 11

Symmetrical

Question 12

B-Biphasic is?

Answer 12

Asymmetrical

Question 13

C-Unbalanced?

Answer 13

Asymmetrical

Question 14

Interferential Current

Answer 14

• 2 Pairs of electrodes
• X placement
• penetrate deeper
• larger area

Question 15

Premoducalted Current

Answer 15

• Medium frequency current (Single)

Question 16

Russian Protocol

Answer 16

• Medium frequency AC

Question 17

Pulse Duration

Answer 17

How long each pulse lasts

Question 18

Phase Duration

Answer 18

Duration of one phase of pulse

Question 19

Interpulse Interval

Answer 19

Amount of time with pulse

Question 20

Pulse

Answer 20

Period of current flow in any direction

Question 21

Frequency

Answer 21

Number of waves per sec.

Question 22

Hertz

Answer 22

1 Cycle per sec.

Question 23

Amplitude

Answer 23

Magnitude of current flow

Question 24

On Time

Answer 24

Time current is on

Question 25

Off time

Answer 25

Time current is off

Question 26

Ramp Up

Answer 26

Amp. from Zero to Max

Question 27

Ramp Down

Answer 27

Max Amp. to Zero

Question 28

Action Potential

Answer 28

Depolarizing nerve membranes

Question 29

Absolute Refractory Period

Answer 29

nerve can’t be further excited

Question 30

Relative Refractory Period

Answer 30

nerve returns to resting potential

Question 31

Action Potential occurs in how many ways?

Answer 31

Both directions

Question 32

Direct Current (DC)

Answer 32

• repel ionized drug molecules
• increase transdermal drug penetration

Question 33

Electrotherapy (Contraindications)

Answer 33

• Pregancy
• Unstable arrhythmia
• Carotid Sinus

Question 34

Adverse Effects of Electordes

Answer 34

• Burns
• Skin Irritation
• Pain

Question 35

Treatment Parameters

Answer 35

• Waveform
• polarity
• frequency
• pulse direction
• on:off time
• ramp up/ramp down,
• treatment duration

Question 36

TENS (transcutaneous electrical nerve stimulation)

Answer 36

unit is a battery-powered device, nerve-related pain conditions