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Passive Care- JS > Low Level Laser Therapy > Flashcards

Low Level Laser Therapy Flashcards

1
Q

What is low level laser therapy

A

light amplification by stimulated emission of radiation

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2
Q

what range is visible light

A

wavelengths 400-700nm

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3
Q

what is a package of light called

A

photon

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4
Q

what is the principle of laser generation-excited state

A

adding energy to electrons causes them to move to a higher orbit

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5
Q

what is the principle of laser generation-ground state

A

if the electron gives up energy it moves to a lower orbit

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6
Q

what is giving up energy called

A

spontaneous emission

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7
Q

what is population inversion

A

the number of excited atoms outweighs the number at ground state

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8
Q

what is pumping

A

the application of an external source of power to the lasting medium

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9
Q

stages to produce laser

A 
pumping of active medium
population inversion
spontaneous emission
stimulated emission
amplification
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10
Q

what is coherence

A

same wavelength and all in phase

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11
Q

what is collimation

A

photons move in parallel fashion, dont diverge

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12
Q

longer wavelength =

A

lower frequency=deeper penetration

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13
Q

types of lasers

A

gas
solid
semiconductor
liquid

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14
Q

what is a semiconductor

A

two layers of materials in a silicon matrix

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15
Q

what is the therapeutic wavelength for laser

A

632.8-902

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16
Q

what is visible red

A

600-700nm

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17
Q

what is infrared

A

700-902nm

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18
Q

helium-neon laser

A

632nm

shorter wavelength therefore more superficial

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19
Q

indium-gallium-aluminum-phosphide

A

semiconductor

630-700

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20
Q

gallium-aluminum-arsenide

A

800-830

semiconductor

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21
Q

gallium-arsenide

A

904 nm
semiconductor
longer wavelength=deeper

22
Q

what is photobiomodulation

A

photochemical effect

from absorption of photons of light by cells

23
Q

photobioinhibition

A

higher dose of laser

24
Q

photobiostimulation

A

lower doses of laser

25
Q

what is a molecule that accepts energy from photons

A

chromophore

26
Q

what is the thing that absorbs photons in biochemical reactions

A

cytochromes

27
Q

photons have what biological effects

A

increase atp synthesis

reduces intracellular ph

28
Q

primary effect of photobiostimulation is due to what

A

direct interaction of photons with cytochromes

29
Q

secondary effect of photobiostimulation is due to what

A 
cell proliferation
protein synthesis
degranulation
growth factor stim
myofibroblast contraction
neurotransmitter modification
30
Q

tertiary effect of photobiostimulation

A

indirect response of distance cells to changes in other cells that have interacted directly with the photons

31
Q

indications for laser

A 
wound healing
TMD
myofascial pain
OA
RA
tendinopathy
trigger points
epicondylitis
neck and lbp
32
Q

AHC

A

vectra genisys laser

33
Q

CHC

A

microlight ML830

34
Q

FDA class 1

A

invisible laser

35
Q

examples of class 1

A

laser printer

cd players

36
Q

FDA class 1M

A

wavelengths between 302.5-400

37
Q

examples of class 1M

A

binoculars

38
Q

FDA class 2

A

visible laser

39
Q

examples of class 2

A

laser pointer

40
Q

FDA class 3

A

operator must wear protective eye wear

41
Q

examples of class 3a

A

1mW- laser pointer

42
Q

examples of class 3b

A

light shows

therapeutic lasers

43
Q

FDA class 4

A

can cause damage

high power

44
Q

examples of class 4

A

surgery
photothermy
research labs

45
Q

contraindications for laser

A 
CA
preggo
eyes
hemorrhage
thyroid
open wounds
epileptic
46
Q

Dosage

A

can be continuous or pulsed

47
Q

super pulsed lasers

A

have increased frequency NOT WAVELENGTH

48
Q

Low frequencies used for

A

repair and regeneration of tissues, immune response, anti-inflammatory effect

49
Q

arnd schults principle

A

biological reactions not only dictated by dose but by rate

50
Q

acute injury laser info

A

smaller more frequent doses
3 min
pain relief or healing
first 48 hours

51
Q

chronic injury

A

larger doses

stimulate less than 500, 5-10min

Passive Care- JS (7 decks)

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