Laser

Question 1

What are the 4 types of lasers?

Answer 1

Gas, solid, semiconductor, liquid.

Question 2

What is the range of therapeutic wavelengths?

Answer 2

632.8 - 905nm

Question 3

As the concentration of melanin or hemoglobin increases, what happens to depth of light penetration?

Answer 3

It decreases

Question 4

What will determine the overall depth of light penetration ?

Answer 4

The type of wavelength

Question 5

What is photobiomodulation?

Answer 5

A physiological effect of laser therapy that the absorption of photons by cells

Question 6

What is the effect of lower doses of laser?

Answer 6

Photobiostimulation

Question 7

What is the effect of higher doses of laser

Answer 7

Photobioinhibition

Question 8

What are choromophores?

Answer 8

Molecules with accept energy from photons

Question 9

What is the effect of absorption of photons in the body?

Answer 9

Stimulates metabolic processes and cell proliferation and enhanced cell division.

Alteration of molecular activity (increase ATP production, reduction in intracellular pH).

Question 10

What are the positive effects of photobiostimulation?

Answer 10

Cell recieves more energy, cell is in optimum condition to play it’s part in the healing process.

Question 11

Phototherapeutic activity is the summation of what three things?

Answer 11

Primary, secondary and tertiary effects of photobiostimulation.

Question 12

What are some indications of Laser therapy?

Answer 12

TMD
Wound healing
Myofascial pain
Osteoarthritis
Rheumatoid arthritis
Tendinopathy
Trigger points
Epicondylitis
Neck and low back pain

Question 13

When is protective eye goggles appropriate for laser therapy?

Answer 13

ALWAYS

Question 14

What kind of duty cycle goes with laser therapy?

Answer 14

Pulsed or continuous

Question 15

Besides obvious contraindications, what other areas should be avoided?

Answer 15

Over the thyroid gland, over bruises.

Question 16

What are the benefits of the super pulsed lasers?

Answer 16

More direct energy delivered to target tissue

Greater safety and enhanced clinical outcomes

Question 17

What does the super pulsed lasers emit?

Answer 17

Low thermal, but high energy density

Question 18

What are the bio-stimulatory frequencies of SPL’s

Answer 18

Lower range frequencies: 0.25 - 500 Hz

Question 19

When should you apply laser for acute injuries and what should be the frequency ?

Answer 19

First 48 hours. 5-1000 Hz

Question 20

Are larger or smaller doses of laser more effective?

Answer 20

Smaller, more frequent and localized are more effective.

Question 21

What is the treatment time for laser therapy?

Answer 21

3-10 minutes

Question 22

What may be noticed with chronic injuries pain wise when treating with laser?

Answer 22

Pain increases for less than 24 hours. Move from “chronic” to “acute” phase.

Question 23

Smaller doses are better for chronic injuires?

Answer 23

False, larger doses may be necesary.

Question 24

What is the treatment time for chronic injuries?

Answer 24

5-10 minutes, shorter as the treatment progresses.