LASERS HIGH YIELD Flashcards

1
Q

the biggest injury happens to what organ?

A

the eyes

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2
Q

T/F, overheating is impossible or possible?

A

impossible due to the energy loss as the energy travels

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3
Q

what are the medical uses of photobiomodulation (PBM)?

A

acute and chronic pain

acclerates the inflammatory process

increase microcirculation

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4
Q

what is the mechanism of PBM?

A

increased cytochrome c oxidase

increased mitochondrial fsx

increased oxygen consumption

increased ATP production

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5
Q

how does the PBM affect the acute inflammation cascade?

A

cytochrome activation

ROS production

proton gradient change

*leads to angiogenesis and SOD production

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6
Q

what is the ultimate affect of therapy laser treatment?

A

reduced healing time

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7
Q

what is the result of immediate pain relief from laser therapy?

A

decrease spasm and analgesia

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8
Q

what is the long term effects of laser therapy?

A

low and high irradiance affects PNS(decreased pro-inflammatory markers like TNF and IL-IB) and CNS(increased beta endorphins)

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9
Q

what does the LASER acronym stand for?

A
light
amplification
stimulated
emission
radiation
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10
Q

what are the three primary properties of laser light?

A

monochromatic

coherent

collimated

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11
Q

what is the wavelength of light emitted by the laser?

A

650-1200 nm

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12
Q

what is the class of lasers we use in podiatry?wavelength?

A
class 3B
5-499 mW
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13
Q

what is the dose of laser therapy based on?

A

correct wavelegnth

appropriated power

appropriate target energy

frequency of treatment

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14
Q

T/F, increasing power applied at the skin increases the power at all tissue depths?

A

t

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15
Q

depth of penetration is determined by?

A

length of the wavelength

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16
Q

what does power determine?

A

the number of photons at the depth the wavelength will take it

17
Q

what is the treatment time equation?

A

desired dosage x area/power

18
Q

what are the dosing considerations?

A

target areas

depth and size

nature of problem

tissue type

goal of treatment

19
Q

what are the variables of higher power?

A

rate
penetration
fast pain relief
more power

20
Q

biphasic dose principle is based on what principle?

A

Arndt-schultz principle

21
Q

eqn for energy measured in joule? what is power measured in?

A

power x time

watts (joule/time)

22
Q

name this type of dosing:

cells in oxidative stress are more apt to respond to energy levels that stabilize membrane and improve metabolism

A

acute dosing

23
Q

name this type of dosing:

targeting nerves directly with higher irradiance=analgesia

decreased risk of rebound pain and swelling

A

chronic dosing

24
Q

how is laser therapy delivery?

A

grid like pattern/paint the tissue