Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

pmod 2nd shift > intro to electrotherapy part 2 > Flashcards

intro to electrotherapy part 2 Flashcards

1
Q

what are the types of currents

A

DC
AC
PC

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what is direct current

A

uninterrupted flow of charged particles in one direction na 1 sec or longer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

DC is aka as _______

A

galvanic current

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

uses of DC

A

iontophoresis
wound healing
stim of denervated muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what are the different modulations of DC

A

reversed
interrupted
surged

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what is AC

A

continuous bidirectional flow of current that changes in direction of flow once per second in reference sa 0 - alternate positive/negative

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

uses of AC

A

promote soft and osseous tissue regeneration

management of pain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

modulations for AC

A

time-modulated AC
amplitude-modulated AC

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what is PC

A

uni or bidirectional flow of current that periodically ceases for finite period of time - may periodic interruptions in current

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

which type of current us most commonly used

A

pulsatile current

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what is a pulse

A

isolated electrical event separated by time from the next event; finite period of current and no current

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

qualitative charac of PC and AC

A

waveform
number of phases
symmetry
phase charge balance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what are the usual types of waveform

A

rectangular
square
triangular
sawtooth
spiked
sinusoidal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what is a phase

A

flow of current in one direction for a period of time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what are the different kinds of phases

A

monophasic
biphasic
polyphasic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what does symmetrical mean

A

same shape of wave and size

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

what are 2 types of assymetrical

A

balanced and unbalanced phase charge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

compare balanced and unbalanced assymetrical

A

balanced - diff shape but same area or size

unbalanced - diff shaper and size

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

how do you name electric current

A

shape - symm or assym - phase - AC/PC

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

what are the quantitative charac of PC and AC

A

amplitude-dependent
time-dependent
amplitude and time dep
current modulations

21
Q

factors under amplitude-dependent

A

peak amplitude
peak-to-peak amplitude
RMS
average current

22
Q

compare peak ampli and peak-to-peak ampli

A

peak - maximum current or voltage in one phase

peak-to-peak - max current of peak of 1st phase above and peak of 2nd phase below in biphasic

23
Q

compare RMS and ave current

A

RMS - effective current applied to tissues

ave - current delivered to tissue /sec

24
Q

RMS and ave current of a sine wave

A

RMS slightly higher than ave current and both below peak

25
Q

RMS and ave current of a square wave

A

same sila sa peak

26
Q

factors under time-dependent

A

phase duration
pulse duration
interphase interval
interpulse interval
rise time
decay time
duty cycle
period
frequency

27
Q

compare phase and pulse duration

A

phase - time bet start and end of one phase

pulse - time bet start and end of all phases in one pulse

28
Q

compare interphase and interpulse interval

A

interphase - time bet 2 successive phases

interpulse - time bet two successive pulses

29
Q

compare rise and decay time

A

rise - from zero to peak of one phase

decay - from peak to zero current of one phase

30
Q

explain duty cycle

A

duty cycle - on time/off time

on - when current is delivered
off - when current stops

31
Q

what is period

A

elapsed time from one reference point to another

pulse duration + interval

start to start ganun

32
Q

what is frequency

A

number of times/second a waveform repeats

pps or Hertz

33
Q

factors under amplitude and time-dependent variables

A

phase charge
pulse charge

34
Q

compare phase and pulse charge

A

phase - amount of energy delivered to tissue by each phase

pulse - sum of all phase charges; so energy under single pulse

35
Q

phase and pulse charge of a monophasic current

A

phase = pulse charge; same sila

36
Q

phase and pulse charge of a biphasic current

A

phase - one phase lng

pulse - both phases

37
Q

what are the types of current modulations

A

frequency
ramp
duration
burst

38
Q

what are the traditional currents

A

faradic
galvanic
russian
HVGC
interferential
diadynamic

39
Q

what is faradic current

A

uneven alternating surged current; 50 Hz tas 100Hz

assymetric biphasic - triangle tas rectangular pulse; 0.2-1 ms na 50 Hz

40
Q

frequency usually used to induce muscle contraction

A

40-60 Hz

41
Q

what is the russian current

A

sine wave na 2500 Hz and 50 bursts /sec

so polyphasic pulse sha

42
Q

what is the australlian current

A

1000 Hz burt modulated in 4 msec burts

43
Q

compare australlian to russian current

A

greater torque of production and dec muscle fatigue w aussie

44
Q

what is HVPGC

A

two high peak amplitude currents na monophasic

monopolar twin peaks have instant rise and slope on decay

44
Q

significance of monopolar twin peaks in HVPGC

A

stimulate nerve axons

45
Q

what is IFC

A

uses 2 MFC that are slightly out of phase w each other

they become heterodyned or mix

46
Q

what is diadynamic current

A

monophasic halfwaves from sine wave - binubura yung nasa baba

becomes similar to galvanic

46
Q

indications of IFC

A

diffuse pain
muscle weakness

pmod 2nd shift (12 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions