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Exam (elaborations)

Laser Hair Removal Test (in class exam)CORRECT 100%

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  • Course
  • Laser Hair Removal
  • Institution
  • Laser Hair Removal

What is the definition of the acronym LASER? - ANSWER Light Amplification by Stimulated Emission of Radiation Name the specific wavelengths for laser hair removal. - ANSWER Ruby- 694 nm Alex- 755 nm Diode-800-810 nm NDYAG- 1064 nm

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  • October 30, 2024
  • 3
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • laser hair removal
  • Laser Hair Removal
  • Laser Hair Removal
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shantelleG
Laser Hair Removal Test (in class exam)CORRECT
100%

What is the definition of the acronym LASER? - ANSWER Light Amplification by Stimulated Emission of
Radiation



Name the specific wavelengths for laser hair removal. - ANSWER Ruby- 694 nm

Alex- 755 nm

Diode-800-810 nm

NDYAG- 1064 nm




What determines the depth of penetration? - ANSWER Dependent on wavelength & spot size (width of
laser beam)



What are the four basic parameters of laser? - ANSWER wavelength, pulse width, spot size, fluence



How is wavelength measured? - ANSWER by the distance between two peaks and measured in
nanometers (nm)

(from peak to peak or trough to trough)



What percentage does TRT (Thermal Relaxation Time) have to accomplish? - ANSWER 50% (time
necessary for a target tissue to cool down by 50% through transfer of heat to surrounding tissue via
thermal diffusion)



What are the 4 types of epidermal cooling used? - ANSWER contact cooling(most efficient), cryogen
spray (applied before and/or after), air cooling (-34° C) , Gel (clear)



What is the concept (Theory) of Selective Photothermolysis? - ANSWER Selective destruction of the
target without thermal injury to the surrounding tissue.

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