LASER HAIR REMOVAL UPDATED EXAM SCRIPT
QUESTIONS AND ANSWERS GRADED A+
✔✔in the visible spectrum, what is the color? - ✔✔wavelength
✔✔give the order of colors in the visible spectrum - ✔✔violet, indigo, blue, green,
yellow, orange, red
✔✔what is active medium of a laser? - ✔✔substance that creates the laser light
✔✔what types of active medium are commonly used? - ✔✔solid, liquid, gas, electronic
✔✔what is the energy source of a LASER? - ✔✔stimulates active medium
✔✔types of the energy sources used in different lasers - ✔✔direct current, radio
frequency, optical (flashlight), other lasers
✔✔what conditions do we use lasers in esthetics for? - ✔✔-hair reducation
-hyperpigmentation
-skin rejuvenation
-spider veins
-stretch marks
-telangiectasia
-capillaries
-melasma
-tattoo removal
-acne
-laser lipo
✔✔what is the definition of chromophore? - ✔✔substance that absorbs the laser light
✔✔what chromophore do we target in hair reduction? - ✔✔melanin
✔✔what chromophore do we target in capillaries? - ✔✔oxyhemoglobin
✔✔what chromophore do we target in hyper pigmentation? - ✔✔melanin
✔✔what chromophore do we target in skin rejuvenation? - ✔✔water
✔✔what wavelength should we use for hair reduction with skin types I-III? - ✔✔Ruby
694 or Alexandrite 755
✔✔what wavelength should we use for hair reduction with skin type I-IV? - ✔✔diode
810
, ✔✔what wavelength should we use for hair reduction with skin types V-VI? - ✔✔Nd:
YAG 1064
✔✔what wavelength would work best for capillaries on the face? - ✔✔dye 85
✔✔what wavelength would work best for superficial spider veins on the leg and why? -
✔✔Nd: YAG 1064
✔✔from what wavelength does water start to absorb light? - ✔✔890nm
✔✔at what stage of hair growth can laser be effective and why? - ✔✔-anagen
-because melanin is present from the shaft into the papilla
✔✔can laser be effective on gray hair? - ✔✔no
✔✔can laser be effective on blond hair? - ✔✔no
✔✔can laser be effective on red hair? - ✔✔no
✔✔can laser be effective on white hair and why? - ✔✔no, because there is no melanin
✔✔why do we have to use a longer wavelength for darker skin types in hair reduction? -
✔✔there is more melanin in the skin
✔✔in order to be effective, laser light should be - ✔✔absorbed
✔✔for darker skin types, we have to use ____ fluence and ____ pulse duration to be
safe - ✔✔less, longer
✔✔fluence indicates the total amount of ____ delivered to the skin - ✔✔energy
✔✔the formula for fluence is - ✔✔F=J(jewels)/CM^2
✔✔lasers are used for the following applications - ✔✔-esthetics: hair reduction
-doctor: hyper pigmentation, skin resurfacing, laser lipo, spider veins, scarring, tattoo
removal, stretch marks, couperose skin, angiomas, telangiectasia, melasma
✔✔lasers are FDA approved for: - ✔✔permanent hair reduction
✔✔when did lasers come into esthetics? - ✔✔late 80s to early 90s
✔✔what class is commonly used in esthetics and for medical purposes? - ✔✔IV (4)
QUESTIONS AND ANSWERS GRADED A+
✔✔in the visible spectrum, what is the color? - ✔✔wavelength
✔✔give the order of colors in the visible spectrum - ✔✔violet, indigo, blue, green,
yellow, orange, red
✔✔what is active medium of a laser? - ✔✔substance that creates the laser light
✔✔what types of active medium are commonly used? - ✔✔solid, liquid, gas, electronic
✔✔what is the energy source of a LASER? - ✔✔stimulates active medium
✔✔types of the energy sources used in different lasers - ✔✔direct current, radio
frequency, optical (flashlight), other lasers
✔✔what conditions do we use lasers in esthetics for? - ✔✔-hair reducation
-hyperpigmentation
-skin rejuvenation
-spider veins
-stretch marks
-telangiectasia
-capillaries
-melasma
-tattoo removal
-acne
-laser lipo
✔✔what is the definition of chromophore? - ✔✔substance that absorbs the laser light
✔✔what chromophore do we target in hair reduction? - ✔✔melanin
✔✔what chromophore do we target in capillaries? - ✔✔oxyhemoglobin
✔✔what chromophore do we target in hyper pigmentation? - ✔✔melanin
✔✔what chromophore do we target in skin rejuvenation? - ✔✔water
✔✔what wavelength should we use for hair reduction with skin types I-III? - ✔✔Ruby
694 or Alexandrite 755
✔✔what wavelength should we use for hair reduction with skin type I-IV? - ✔✔diode
810
, ✔✔what wavelength should we use for hair reduction with skin types V-VI? - ✔✔Nd:
YAG 1064
✔✔what wavelength would work best for capillaries on the face? - ✔✔dye 85
✔✔what wavelength would work best for superficial spider veins on the leg and why? -
✔✔Nd: YAG 1064
✔✔from what wavelength does water start to absorb light? - ✔✔890nm
✔✔at what stage of hair growth can laser be effective and why? - ✔✔-anagen
-because melanin is present from the shaft into the papilla
✔✔can laser be effective on gray hair? - ✔✔no
✔✔can laser be effective on blond hair? - ✔✔no
✔✔can laser be effective on red hair? - ✔✔no
✔✔can laser be effective on white hair and why? - ✔✔no, because there is no melanin
✔✔why do we have to use a longer wavelength for darker skin types in hair reduction? -
✔✔there is more melanin in the skin
✔✔in order to be effective, laser light should be - ✔✔absorbed
✔✔for darker skin types, we have to use ____ fluence and ____ pulse duration to be
safe - ✔✔less, longer
✔✔fluence indicates the total amount of ____ delivered to the skin - ✔✔energy
✔✔the formula for fluence is - ✔✔F=J(jewels)/CM^2
✔✔lasers are used for the following applications - ✔✔-esthetics: hair reduction
-doctor: hyper pigmentation, skin resurfacing, laser lipo, spider veins, scarring, tattoo
removal, stretch marks, couperose skin, angiomas, telangiectasia, melasma
✔✔lasers are FDA approved for: - ✔✔permanent hair reduction
✔✔when did lasers come into esthetics? - ✔✔late 80s to early 90s
✔✔what class is commonly used in esthetics and for medical purposes? - ✔✔IV (4)
