LASER SAFETY AND PRECAUTIONS CERTIFICATION EVALUATION SOLVED QUESTIONS WITH VERIFIED ANSWERS EXAM PREP

LASER SAFETY AND PRECAUTIONS
CERTIFICATION EVALUATION SOLVED
QUESTIONS WITH VERIFIED ANSWERS
EXAM PREP

●● Scatter:
Answer: Occurs when photons change direction and travel to unwanted
tissue.


●● Transmission:
Answer: Occurs when the photons pass through the skin without being
absorbed by any specific target chromophore (unwanted unless bulk
heating *genesis*)


●● Absorption: *want*
Answer: Occurs when photons are absorbed by the tissue


●● 3 types of damage that can happen from absorption:
Answer: thermal (heat), physical (high speed sound *acoustic*) &
chemical (topicals activated by light)


●● Reflection:

, Answer: Occurs when neither absorption or transmission is achieved.
The wavelength is reflected off of the skin and dissipates


●● The term _____ is also referred to light.
Answer: radiation


●● Internal structure of laser device:
Answer: emerging laser beam, high reflection mirror, optical resonator
(laser cavity), & partial reflection mirror


●● Active medium:
Answer: material energy is passed into though), atoms active to produce
wavelength of photons, have identical properties, *solid, liquid, gas*


●● Optical Resonator (laser cavity):
Answer: surrounds active medium, one side partially reflective, other
fully reflective, mirrors reflect back & forth and as photons collide
energy is increased and released through partial reflective mirror


●● Delivery system:
Answer: hardware & software that work together to control release of
laser light onto skin, can have cooling device to increase safety &
comfort, can include short & long pusle