ELECTROLYSIS IBEC+LASER STATE
BOARD PRACTICE EXAM 2025
QUESTIONS AND ANSWERS
Laser stands for what? - ANS Light
Amplification by
Stimulated
Emission of
Radiation
What is the distance measured in nanometers between two peaks or two troughs known as? -
ANS Wavelength
Light of only one color & one specific wavelength is known as? - ANS Monochromatic
Refraction is also known as what? - ANS Transmission
The process where by a newly created photon of light (generated through amplification)
acquires energy equal to the photons that created it is known as? - ANS Stimulated Emission
The states of equilibrium or middle state of light - ANS Metastable State
Who theorized stimulated emission? - ANS Albert Einstein
The part of the laser that contains the active medium is called? - ANS Resinator cavity
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,What are the states of light in stimulated emission? - ANS Ground State
Excited State
Singlet State
Metastable State
Alexandrite laer is in the visible light spectrum at what wavelength? - ANS 755 nm
The Nd:YAG laser falls in the invisible light spectrum with a wavelength of what? - ANS 1064
nm
What type of wave is used in laser hair removal? - ANS Pulsed wave
A chromophore is also know at what? - ANS Target
The chromophore absorbs what? - ANS Energy
Goggles worn by the patient and practitioner must be approved by which group? - ANS ANSI
(American National Standard Institute) for Class 3B and Class 4 Lasers
Each laser wavelength is what to its machine? - ANS Specific
What are the parameters when doing laser hair removal? - ANS Wavelength
Spot Size
Fluence
Pulse Width
Pulsed lasers allow for selective heating of specific targets, this is also known as? -
ANS Selective Photothermolysis
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,The rate/amount of energy delivered within a given area is known as? - ANS Fluence
An increase in fluence equals an increase in what? - ANS Heat. Resulting in more damage
The length of time the light/energy is in contact with the target that is measured in milliseconds
(ms): - ANS Pulse width/Pulse duration
If the time of pulse duration is changed from milliseconds to nanoseconds the laser is what? -
ANS Q Switched
A Q switched laser is used for what? - ANS Tattoo removal
Which skin types can tolerate an Alex laser? - ANS 1-4
Which skin types can tolerate a Nd:YAG laser? - ANS All skin types
Which skin type should only have electrolysis and no laser? - ANS Type 1
If the pulse width is greater than the thermal relaxation time it results in? - ANS A burn
If the pulse width is less than or equal to the thermal relaxation time it results in? -
ANS Perfect hair removal
Larger structures have __________ thermal relaxation times (TRT) - ANS Longer
Smaller structures have _______ thermal relaxation times (TRT) - ANS Shorter
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, What kind of pulse widths protect the epidermis, penetrate deeper and cool more slowly? -
ANS Long
Longer pulse widths are for what skin type? - ANS 4-6
What kind of pulse widths are more aggressive and heat up and cool down quickly? -
ANS Short
Shorter pulse widths are for what skin type? - ANS 1-3
What percentage of follicles are damaged with each laser treatment? - ANS 15%
What is a long-term stable reduction of the growing hairs after a treatment regime? -
ANS Laser Hair Removal (LHR)
What does the FDA call laser hair removal? - ANS Permanent hair reduction
What is the highest setting the skin can tolerate without damage called? - ANS Fluence
Threshold
What is the highest setting the patient can tolerate without the treatment becoming impossible
called? - ANS Patient Threshold
The amount of hair per one square centimeter is known as? - ANS Hair density
The higher the hair density, the _______ the fluence? - ANS Lower
What percentage of overlapping do you want when doing LHR? - ANS 30%
COPYRIGHT © 2025 THESTAR ALL RIGHTS RESERVED 4
BOARD PRACTICE EXAM 2025
QUESTIONS AND ANSWERS
Laser stands for what? - ANS Light
Amplification by
Stimulated
Emission of
Radiation
What is the distance measured in nanometers between two peaks or two troughs known as? -
ANS Wavelength
Light of only one color & one specific wavelength is known as? - ANS Monochromatic
Refraction is also known as what? - ANS Transmission
The process where by a newly created photon of light (generated through amplification)
acquires energy equal to the photons that created it is known as? - ANS Stimulated Emission
The states of equilibrium or middle state of light - ANS Metastable State
Who theorized stimulated emission? - ANS Albert Einstein
The part of the laser that contains the active medium is called? - ANS Resinator cavity
COPYRIGHT © 2025 THESTAR ALL RIGHTS RESERVED 1
,What are the states of light in stimulated emission? - ANS Ground State
Excited State
Singlet State
Metastable State
Alexandrite laer is in the visible light spectrum at what wavelength? - ANS 755 nm
The Nd:YAG laser falls in the invisible light spectrum with a wavelength of what? - ANS 1064
nm
What type of wave is used in laser hair removal? - ANS Pulsed wave
A chromophore is also know at what? - ANS Target
The chromophore absorbs what? - ANS Energy
Goggles worn by the patient and practitioner must be approved by which group? - ANS ANSI
(American National Standard Institute) for Class 3B and Class 4 Lasers
Each laser wavelength is what to its machine? - ANS Specific
What are the parameters when doing laser hair removal? - ANS Wavelength
Spot Size
Fluence
Pulse Width
Pulsed lasers allow for selective heating of specific targets, this is also known as? -
ANS Selective Photothermolysis
COPYRIGHT © 2025 THESTAR ALL RIGHTS RESERVED 2
,The rate/amount of energy delivered within a given area is known as? - ANS Fluence
An increase in fluence equals an increase in what? - ANS Heat. Resulting in more damage
The length of time the light/energy is in contact with the target that is measured in milliseconds
(ms): - ANS Pulse width/Pulse duration
If the time of pulse duration is changed from milliseconds to nanoseconds the laser is what? -
ANS Q Switched
A Q switched laser is used for what? - ANS Tattoo removal
Which skin types can tolerate an Alex laser? - ANS 1-4
Which skin types can tolerate a Nd:YAG laser? - ANS All skin types
Which skin type should only have electrolysis and no laser? - ANS Type 1
If the pulse width is greater than the thermal relaxation time it results in? - ANS A burn
If the pulse width is less than or equal to the thermal relaxation time it results in? -
ANS Perfect hair removal
Larger structures have __________ thermal relaxation times (TRT) - ANS Longer
Smaller structures have _______ thermal relaxation times (TRT) - ANS Shorter
COPYRIGHT © 2025 THESTAR ALL RIGHTS RESERVED 3
, What kind of pulse widths protect the epidermis, penetrate deeper and cool more slowly? -
ANS Long
Longer pulse widths are for what skin type? - ANS 4-6
What kind of pulse widths are more aggressive and heat up and cool down quickly? -
ANS Short
Shorter pulse widths are for what skin type? - ANS 1-3
What percentage of follicles are damaged with each laser treatment? - ANS 15%
What is a long-term stable reduction of the growing hairs after a treatment regime? -
ANS Laser Hair Removal (LHR)
What does the FDA call laser hair removal? - ANS Permanent hair reduction
What is the highest setting the skin can tolerate without damage called? - ANS Fluence
Threshold
What is the highest setting the patient can tolerate without the treatment becoming impossible
called? - ANS Patient Threshold
The amount of hair per one square centimeter is known as? - ANS Hair density
The higher the hair density, the _______ the fluence? - ANS Lower
What percentage of overlapping do you want when doing LHR? - ANS 30%
COPYRIGHT © 2025 THESTAR ALL RIGHTS RESERVED 4
