Light/lazer

Question 1

What does the Wavelength of Light effect?

Answer 1

Effects depth of light penetration/impacts nature of cellular effects of light

Question 2

Longer wavelengths do what?

Answer 2

deeper penetration

Question 3

What form of light is most commonly used? Why?

NM parameters?

Answer 3

(red or infrared): most commonly used for pt tx due to its optimal depth of penetration
600-1300 nm
longer end of range penetrates more deeply (lowerr fq is deeper)

Question 4

IR light penetrates how far into soft tissue?

Answer 4

IR light penetrates 2-4 cm into soft tissue

Question 5

Red light penetrates how far?

Answer 5

Red light penetrates only a few millimeters

Question 6

Ir waelength is visible? t/f?

Answer 6

False

Question 7

Wavelength and frequency are?

Answer 7

inversely proportional

Question 8

Light used for therapy produce ______ ranges of ____ or _____ part of the spectruc?

Answer 8

narrow, visible, nearly-visible

Question 9

Laser is ____chromatic while other forms used are ___ chromatic?

Answer 9

Mono, multi

Question 10

Parameters for the use LED

Answer 10

Parameters for the use of lasers and light

LED: provide most diffuse light—large, superficial areas
Some laser and SLD (higher powered) have LED in visible range as ‘ON’ indicators

Question 11

SLD can treat areas of what depth?

Answer 11

higher powered than LED, less diffuse—treat superficial or moderately deep areas

Question 12

Laser diodes can treat the ____ and _____ , ____ areas

Answer 12

very concentrated/single wavelength—small, deepest focused areas

Question 13

LED can treat ____ size, ____- depth?

Answer 13

provide most diffuse light—large, superficial areas

Some laser and SLD (higher powered) have LED in visible range as ‘ON’ indicators

Question 14

ParametersSoft tissue healing?

Answer 14

Soft tissue healing 5-16

Question 15

Fracture healing?

Answer 15

5-16

Question 16

Arthritis Acute?

Arthritis: Chronic?

Answer 16

Arthritis: Acute 2-4
Arthritis: Chronic 4-8

Question 17

Lymphadema?

Answer 17

Lymphadema 1.5

Question 18

Neuropathy?

Answer 18

Neuropathy 10-12

Question 19

Acute soft tissue inflammation?

Answer 19

Acute soft tissue inflammation 2-8

Question 20

Chronic soft tissue inflammation?

Answer 20

Chronic soft tissue inflammation 10-20

Question 21

Therapeutic window of light?

Answer 21

600 nm to 1150 nm (not drew) 600-1300 IR (DREW)

Question 22

LED stands for?

Answer 22

LED: light emitting diode

Question 23

SLD stands for?

Answer 23

supraluminous diode

Question 24

LLLT stands for?

Answer 24

Low-level laser therapy (LLLT)

Question 25

nm stands for?

Answer 25

Nanometer

Question 26

J/cm2 means?

Answer 26

Joules per centimeter squared

Question 27

mW is?

Answer 27

Miliwats

Question 28

``` Documentation of Light and lasers Type of diode Wavelength Power Area of body treated Energy density ```

Answer 28

``` Type of diode (laser, LED, SLD) Wavelength (nm) Power (mW) Area of body treated Energy density (J/cm²) ```