Exam 3: Intro to Electrotherapy

Question 1

What term is defined as the flow of charged particles

Answer 1

electrical current

Question 2

What term defined as the location on the skin where electrical stimulation most effectively causes specific muscles to contract

Answer 2

motor points

Question 3

What are 5 clinical applications/indications of electrical currents

Answer 3

to produce muscle contractions
control pain
promote tissue healing
enhance transdermal drug delivery
provide electromyographic biofeedback

Question 4

What are the different types of waveforms of electrical current

Answer 4

direct current
alternating current
pulsed current

Question 5

Which type of waveform/current is a continuous stream of charged particles

Answer 5

direct current

Question 6

What type of current does iontophoresis use

Answer 6

direct current

Question 7

Which type of waveform/current is a continuous, sinusoidal, bidirectional flow of charged particles

Answer 7

alternating current

Question 8

Which type of waveform/current is an interrupted flow of charges particles with a current that flows as a series of pulses

Answer 8

pulsed current

Question 9

what are the two types of pulsed currents

Answer 9

monophasic and biphasic

Question 10

What type of current is produced by interference of two medium frequency alternating currents with slightly different frequencies

Answer 10

interferential current

Question 11

What type of current is produced with a single circuit and two electrodes

Answer 11

premodulated

Question 12

What is the beat frequency

Answer 12

The combination and difference in two electrodes during IFC stimulation

Question 13

IFC stimulations is used to treat ____

Answer 13

pain

Question 14

Premodulated current is essentially the same as ____ except it only as a single circuit

Answer 14

IFC

Question 15

Why is premodulated current name PRE modulated

Answer 15

Because the current is pre-formed in the machine instead of in the person

Question 16

Which type of current is used for muscle re-education or muscle strength

Answer 16

russian

Question 17

Which type of current involves a medium frequency AC with a carrier frequency of 2500 Hz

Answer 17

russian

Question 18

intensity or strength of a current is usually referred to as the ____

Answer 18

amplitude

Question 19

ramping up and ramping down is commonly used during _____ treatment

Answer 19

russian

Question 20

is an axon negative on the inside or outside of the axon

Answer 20

inside

Question 21

on the strength-duration curve what is the range for sensory stimulation

Answer 21

50-100

Question 22

on the strength-duration curve what is the range for motor stimulation

Answer 22

150-350

Question 23

____ ms for denervated muscles on the strength-duration curve

Answer 23

10

Question 24

What are adverse effects of electrical currents

Answer 24

burns, skin irritation, and pain

Question 25

electrodes that are placed closer together will penetrate more (superficial/deep)

Answer 25

superficial

Question 26

electrodes that are placed further apart will penetrate more (superficial/deep)

Answer 26

deep