ELECTROLYSIS IBEC + LASER STATE
BOARD PRACTICE TEST 2026
QUESTIONS & VERIFIED CORRECT
ANSWERS RATED 100% COMPLETE
Laser stands for what? - CORRECT ANSWER Light
Amplification by
Stimulated
Emission of
Radiation
What is the distance measured in nanometers between two peaks or two troughs known
as? - CORRECT ANSWER Wavelength
Light of only one color & one specific wavelength is known as? - CORRECT ANSWER
Monochromatic
Refraction is also known as what? - CORRECT ANSWER 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? - CORRECT
ANSWER Stimulated Emission
The states of equilibrium or middle state of light - CORRECT ANSWER Metastable
State
Who theorized stimulated emission? - CORRECT ANSWER Albert Einstein
The part of the laser that contains the active medium is called? - CORRECT ANSWER
Resinator cavity
What are the states of light in stimulated emission? - CORRECT ANSWER Ground
State
Excited State
Singlet State
Metastable State
Alexandrite laer is in the visible light spectrum at what wavelength? - CORRECT
ANSWER 755 nm
,The Nd:YAG laser falls in the invisible light spectrum with a wavelength of what? -
CORRECT ANSWER 1064 nm
What type of wave is used in laser hair removal? - CORRECT ANSWER Pulsed wave
A chromophore is also know at what? - CORRECT ANSWER Target
The chromophore absorbs what? - CORRECT ANSWER Energy
Goggles worn by the patient and practitioner must be approved by which group? -
CORRECT ANSWER ANSI (American National Standard Institute) for Class 3B and
Class 4 Lasers
Each laser wavelength is what to its machine? - CORRECT ANSWER Specific
What are the parameters when doing laser hair removal? - CORRECT ANSWER
Wavelength
Spot Size
Fluence
Pulse Width
Pulsed lasers allow for selective heating of specific targets, this is also known as? -
CORRECT ANSWER Selective Photothermolysis
The rate/amount of energy delivered within a given area is known as? - CORRECT
ANSWER Fluence
An increase in fluence equals an increase in what? - CORRECT ANSWER Heat.
Resulting in more damage
The length of time the light/energy is in contact with the target that is measured in
milliseconds (ms): - CORRECT ANSWER Pulse width/Pulse duration
If the time of pulse duration is changed from milliseconds to nanoseconds the laser is
what? - CORRECT ANSWER Q Switched
A Q switched laser is used for what? - CORRECT ANSWER Tattoo removal
Which skin types can tolerate an Alex laser? - CORRECT ANSWER 1-4
Which skin types can tolerate a Nd:YAG laser? - CORRECT ANSWER All skin types
Which skin type should only have electrolysis and no laser? - CORRECT ANSWER
Type 1
,If the pulse width is greater than the thermal relaxation time it results in? - CORRECT
ANSWER A burn
If the pulse width is less than or equal to the thermal relaxation time it results in? -
CORRECT ANSWER Perfect hair removal
Larger structures have __________ thermal relaxation times (TRT) - CORRECT
ANSWER Longer
Smaller structures have _______ thermal relaxation times (TRT) - CORRECT
ANSWER Shorter
What kind of pulse widths protect the epidermis, penetrate deeper and cool more
slowly? - CORRECT ANSWER Long
Longer pulse widths are for what skin type? - CORRECT ANSWER 4-6
What kind of pulse widths are more aggressive and heat up and cool down quickly? -
CORRECT ANSWER Short
Shorter pulse widths are for what skin type? - CORRECT ANSWER 1-3
What percentage of follicles are damaged with each laser treatment? - CORRECT
ANSWER 15%
What is a long-term stable reduction of the growing hairs after a treatment regime? -
CORRECT ANSWER Laser Hair Removal (LHR)
What does the FDA call laser hair removal? - CORRECT ANSWER Permanent hair
reduction
What is the highest setting the skin can tolerate without damage called? - CORRECT
ANSWER Fluence Threshold
What is the highest setting the patient can tolerate without the treatment becoming
impossible called? - CORRECT ANSWER Patient Threshold
The amount of hair per one square centimeter is known as? - CORRECT ANSWER
Hair density
The higher the hair density, the _______ the fluence? - CORRECT ANSWER Lower
What percentage of overlapping do you want when doing LHR? - CORRECT ANSWER
30%
Darker/tanned skin requires what kind of fluence? - CORRECT ANSWER Lower
, What should you never use to clean a patient's skin prior to LHR? - CORRECT
ANSWER Alcohol
Pulse duration is measured in what unit? - CORRECT ANSWER milliseconds (ms)
Spot size is measured in what unit? - CORRECT ANSWER millimeters (mm)
Repetition rate is measured in what unit? - CORRECT ANSWER hertz (Hz)
Who is the grandfather of laser and was the first person to use water to cool the skin
during laser? - CORRECT ANSWER Rox Anderson
The formula for fluence is? - CORRECT ANSWER Joules = J/cm2
What kind of lasers allow for selective heating of specific targets? - CORRECT
ANSWER Selective photothermolysis
For deeper laser penetration what should the practitioner do to the laser? - CORRECT
ANSWER Change to a bigger spot size
The primary reason for using cooling devices during laser hair removal is? - CORRECT
ANSWER Allows for higher and more effective fluences to be used while sparing the
epidermis
During the initial consultation, the patient should be informed that the process will take
how long for laser hair removal? - CORRECT ANSWER A series of treatments
The principle that says energy must be absorbed by an object in order to produce an
effect is called? - CORRECT ANSWER Grotthuss-Draper law
What is laser light? - CORRECT ANSWER Monochromatic light
Laser is equivalent to which of the following modalities? - CORRECT ANSWER
Thermolysis
An element has the ability to produce laser when it is in which state? - CORRECT
ANSWER Metastable state
What are the positive reactions to the skin indicating a successful LHR treatment? -
CORRECT ANSWER Perifollicular erythema, perifollicular edema
Incandescent light is an example of? - CORRECT ANSWER Incoherent light
A requirement for foot switches that directly pulse the laser is that they be? -
CORRECT ANSWER Hooded
BOARD PRACTICE TEST 2026
QUESTIONS & VERIFIED CORRECT
ANSWERS RATED 100% COMPLETE
Laser stands for what? - CORRECT ANSWER Light
Amplification by
Stimulated
Emission of
Radiation
What is the distance measured in nanometers between two peaks or two troughs known
as? - CORRECT ANSWER Wavelength
Light of only one color & one specific wavelength is known as? - CORRECT ANSWER
Monochromatic
Refraction is also known as what? - CORRECT ANSWER 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? - CORRECT
ANSWER Stimulated Emission
The states of equilibrium or middle state of light - CORRECT ANSWER Metastable
State
Who theorized stimulated emission? - CORRECT ANSWER Albert Einstein
The part of the laser that contains the active medium is called? - CORRECT ANSWER
Resinator cavity
What are the states of light in stimulated emission? - CORRECT ANSWER Ground
State
Excited State
Singlet State
Metastable State
Alexandrite laer is in the visible light spectrum at what wavelength? - CORRECT
ANSWER 755 nm
,The Nd:YAG laser falls in the invisible light spectrum with a wavelength of what? -
CORRECT ANSWER 1064 nm
What type of wave is used in laser hair removal? - CORRECT ANSWER Pulsed wave
A chromophore is also know at what? - CORRECT ANSWER Target
The chromophore absorbs what? - CORRECT ANSWER Energy
Goggles worn by the patient and practitioner must be approved by which group? -
CORRECT ANSWER ANSI (American National Standard Institute) for Class 3B and
Class 4 Lasers
Each laser wavelength is what to its machine? - CORRECT ANSWER Specific
What are the parameters when doing laser hair removal? - CORRECT ANSWER
Wavelength
Spot Size
Fluence
Pulse Width
Pulsed lasers allow for selective heating of specific targets, this is also known as? -
CORRECT ANSWER Selective Photothermolysis
The rate/amount of energy delivered within a given area is known as? - CORRECT
ANSWER Fluence
An increase in fluence equals an increase in what? - CORRECT ANSWER Heat.
Resulting in more damage
The length of time the light/energy is in contact with the target that is measured in
milliseconds (ms): - CORRECT ANSWER Pulse width/Pulse duration
If the time of pulse duration is changed from milliseconds to nanoseconds the laser is
what? - CORRECT ANSWER Q Switched
A Q switched laser is used for what? - CORRECT ANSWER Tattoo removal
Which skin types can tolerate an Alex laser? - CORRECT ANSWER 1-4
Which skin types can tolerate a Nd:YAG laser? - CORRECT ANSWER All skin types
Which skin type should only have electrolysis and no laser? - CORRECT ANSWER
Type 1
,If the pulse width is greater than the thermal relaxation time it results in? - CORRECT
ANSWER A burn
If the pulse width is less than or equal to the thermal relaxation time it results in? -
CORRECT ANSWER Perfect hair removal
Larger structures have __________ thermal relaxation times (TRT) - CORRECT
ANSWER Longer
Smaller structures have _______ thermal relaxation times (TRT) - CORRECT
ANSWER Shorter
What kind of pulse widths protect the epidermis, penetrate deeper and cool more
slowly? - CORRECT ANSWER Long
Longer pulse widths are for what skin type? - CORRECT ANSWER 4-6
What kind of pulse widths are more aggressive and heat up and cool down quickly? -
CORRECT ANSWER Short
Shorter pulse widths are for what skin type? - CORRECT ANSWER 1-3
What percentage of follicles are damaged with each laser treatment? - CORRECT
ANSWER 15%
What is a long-term stable reduction of the growing hairs after a treatment regime? -
CORRECT ANSWER Laser Hair Removal (LHR)
What does the FDA call laser hair removal? - CORRECT ANSWER Permanent hair
reduction
What is the highest setting the skin can tolerate without damage called? - CORRECT
ANSWER Fluence Threshold
What is the highest setting the patient can tolerate without the treatment becoming
impossible called? - CORRECT ANSWER Patient Threshold
The amount of hair per one square centimeter is known as? - CORRECT ANSWER
Hair density
The higher the hair density, the _______ the fluence? - CORRECT ANSWER Lower
What percentage of overlapping do you want when doing LHR? - CORRECT ANSWER
30%
Darker/tanned skin requires what kind of fluence? - CORRECT ANSWER Lower
, What should you never use to clean a patient's skin prior to LHR? - CORRECT
ANSWER Alcohol
Pulse duration is measured in what unit? - CORRECT ANSWER milliseconds (ms)
Spot size is measured in what unit? - CORRECT ANSWER millimeters (mm)
Repetition rate is measured in what unit? - CORRECT ANSWER hertz (Hz)
Who is the grandfather of laser and was the first person to use water to cool the skin
during laser? - CORRECT ANSWER Rox Anderson
The formula for fluence is? - CORRECT ANSWER Joules = J/cm2
What kind of lasers allow for selective heating of specific targets? - CORRECT
ANSWER Selective photothermolysis
For deeper laser penetration what should the practitioner do to the laser? - CORRECT
ANSWER Change to a bigger spot size
The primary reason for using cooling devices during laser hair removal is? - CORRECT
ANSWER Allows for higher and more effective fluences to be used while sparing the
epidermis
During the initial consultation, the patient should be informed that the process will take
how long for laser hair removal? - CORRECT ANSWER A series of treatments
The principle that says energy must be absorbed by an object in order to produce an
effect is called? - CORRECT ANSWER Grotthuss-Draper law
What is laser light? - CORRECT ANSWER Monochromatic light
Laser is equivalent to which of the following modalities? - CORRECT ANSWER
Thermolysis
An element has the ability to produce laser when it is in which state? - CORRECT
ANSWER Metastable state
What are the positive reactions to the skin indicating a successful LHR treatment? -
CORRECT ANSWER Perifollicular erythema, perifollicular edema
Incandescent light is an example of? - CORRECT ANSWER Incoherent light
A requirement for foot switches that directly pulse the laser is that they be? -
CORRECT ANSWER Hooded
