LASER HAIR REMOVAL COMPREHENSIVE EXAM UPDATED
QUESTIONS AND ANSWERS GRADED A+
✔✔When electrons are in an excited state, what stage of lasing are they in? -
✔✔Singlet
✔✔When electrons are in a resting state, what stage of lasing are they in? -
✔✔Ground/stable
✔✔What kind of radiation causes changes in DNA and can lead to cellular mutation or
death? - ✔✔Ionizing radiation
✔✔What kind of radiation is LASER? - ✔✔Non-ionizing radiation
✔✔What kind of radiation does not cause changes in DNA? - ✔✔Non-ionizing radiation
✔✔What is the wavelength for the Nd: YAG? - ✔✔1064 nm
✔✔What do you call the distance measured between two peaks or high points of a
wave? - ✔✔Wavelength
✔✔What is the acronym for LASER? - ✔✔Light Amplification by Stimulated Emission of
Radiation
✔✔What is the most important variable to take into consideration in regards to the
thermal relaxation time of the skin? - ✔✔Pulse duration
✔✔Are IPL machines considered to be true lasers? - ✔✔No
✔✔What are the three characteristics of IPL light? - ✔✔Polychromatic (broad spectrum
of light) non-collimated, non-coherent
✔✔What do you call the bending of light? - ✔✔Refraction
✔✔After the chromophore has absorbed the laser light and turned it into heat, where
does the heat transfer to? - ✔✔Adjacent tissue
✔✔Longer wavelengths will have _______ penetration into the skin compared to shorter
wavelengths. - ✔✔Deeper/more
✔✔What does IPL stand for? - ✔✔Intense Pulsed Light
✔✔What is the wavelength for the Alexandrite laser? - ✔✔755 nm
QUESTIONS AND ANSWERS GRADED A+
✔✔When electrons are in an excited state, what stage of lasing are they in? -
✔✔Singlet
✔✔When electrons are in a resting state, what stage of lasing are they in? -
✔✔Ground/stable
✔✔What kind of radiation causes changes in DNA and can lead to cellular mutation or
death? - ✔✔Ionizing radiation
✔✔What kind of radiation is LASER? - ✔✔Non-ionizing radiation
✔✔What kind of radiation does not cause changes in DNA? - ✔✔Non-ionizing radiation
✔✔What is the wavelength for the Nd: YAG? - ✔✔1064 nm
✔✔What do you call the distance measured between two peaks or high points of a
wave? - ✔✔Wavelength
✔✔What is the acronym for LASER? - ✔✔Light Amplification by Stimulated Emission of
Radiation
✔✔What is the most important variable to take into consideration in regards to the
thermal relaxation time of the skin? - ✔✔Pulse duration
✔✔Are IPL machines considered to be true lasers? - ✔✔No
✔✔What are the three characteristics of IPL light? - ✔✔Polychromatic (broad spectrum
of light) non-collimated, non-coherent
✔✔What do you call the bending of light? - ✔✔Refraction
✔✔After the chromophore has absorbed the laser light and turned it into heat, where
does the heat transfer to? - ✔✔Adjacent tissue
✔✔Longer wavelengths will have _______ penetration into the skin compared to shorter
wavelengths. - ✔✔Deeper/more
✔✔What does IPL stand for? - ✔✔Intense Pulsed Light
✔✔What is the wavelength for the Alexandrite laser? - ✔✔755 nm
