Electrolysis IBEC and Laser State Board
Practice Exam Questions and Answers 2025
What is a round follicle for which hair type? - Correct Ans-Straight hair
Laser stands for? - Correct Ans-L- LIGHT
A- AMPLIFICATION
S- STIMULATED
E- EMISSION
R- RADIATION
What is the distance measured in nanometers between two peaks? - Correct Ans-
Wavelength
Light of only one color and one specific wavelength? - Correct Ans-Monochromatic
Refraction is also know as? - Correct Ans-Transmission
Newly created photon of light, requires energy equal to? - Correct Ans-Simulated
Emission
Who theorized stimulated emission? - Correct Ans-Albert Einstein
Alexandrite laser is in the visible light spectrum at what wavelength? - Correct Ans-
755nm
The Nd:YAG laser falls in the invisible light spectrum with a wavelength of what? -
Correct Ans-1064nm
What type of wave is used in laser hair removal? - Correct Ans-Pulsed wave
A chromophore is also known as what? - Correct Ans-Target
The chromophore absorbs what? - Correct Ans-Energy
Googles are approved by? - Correct Ans-ANSI (American National Standard Institute)
Each laser wavelength is what to it's machine? - Correct Ans-Specific
What are the parameters when doing laser hair removal? - Correct Ans-1. Wavelength
2. Spot size
3. Fluence
4. Pulse Width
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,Electrolysis IBEC
Pulsed lasers allow for selective heating of specific targets, this is also known as? -
Correct Ans-Selective Photothermolysis
Rate/amount of energy delivered within a given area is? - Correct Ans-Fluence
Increase in fluence equals an increase in what? - Correct Ans-Heat
Length of time the light/energy is in contact with the target that is measured in
milliseconds? - Correct Ans-Pulse width/Pulse duration
If the time of pulse duration is changed from milliseconds to nanoseconds the laser is
what? - Correct Ans-Q Switched
A Q-Switched laser is used for what? - Correct Ans-Tattoo Removal
Which skin types can tolerate an ALEX LASER? - Correct Ans-Fitzpatrick 1-4
Which skin types can tolerate an Nd:YAG laser? - Correct Ans-ALL SKIN TYPES
Which skin type can only have electrolysis? - Correct Ans-Type 1
If the pulse width is greater than the thermal relaxation time, it results in? - Correct Ans-
A Burn
If the pulse width is less than or equal to the thermal relaxation time, it results in? -
Correct Ans-Perfect hair removal
Larger structures have what thermal relaxation times (TRT)? - Correct Ans-Longer
Smaller structures have what thermal relaxation times (TRT)? - Correct Ans-Shorter
What kind of pulse widths protect the epidermis, penetrate deeper, and cool more
slowly? - Correct Ans-Long
Longer pulse widths are for what skin types? - Correct Ans-Fitzpatrick 4-6
What kind of pulse widths are more aggressive and heat up and cool down quickly? -
Correct Ans-Short
Shorter pulse widths are for what skin type? - Correct Ans-Fitzpatrick 1-3
What percentage of follicles are damaged with each laser treatment? - Correct Ans-15%
Long term stable reduction of the growing hairs after a treatment? - Correct Ans-LASER
HAIR REMOVAL
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, Electrolysis IBEC
What does the FDA call laser hair removal? - Correct Ans-Permanent hair reduction
What is the highest setting the skin can tolerate without damage called? - Correct Ans-
Fluence Threshold
What is the highest setting the patient can tolerate without the treatment becoming
impossible? - Correct Ans-Patient Threshold
What is hair density? - Correct Ans-The amount of hair per square centimeter
The higher the hair density, the _________________ the fluence? - Correct Ans-Lower
What percentage of overlapping do you want when doing laser hair removal? - Correct
Ans-30%
Darker/tanned skin requires what kind of fluence? - Correct Ans-Lower
What should you never use to clean a patient's skin before laser hair removal? - Correct
Ans-ALCOHOL
Pulse duration is measured in what unit? - Correct Ans-Milliseconds (ms)
Spot size is measured in what unit? - Correct Ans-Millimeters (mm)
Repetition rate is measured in what unit? - Correct Ans-Hertz (Hz)
Who is the grandfather of laser and was the first person to use water to Cool the skin
during laser? - Correct Ans-Rox Anderson
The formula for fluence is? - Correct Ans-Joules = J/cm2
What kind of lasers allow for selective heating of specific targets? - Correct Ans-
Selective Photothermolysis
For deeper laser penetration what should the practitioner do to the laser? - Correct Ans-
Change to a bigger spot size
The primary reason for using cooling devices during laser hair removal is? - Correct
Ans-It allows for higher and more effective fluencies 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 Ans-A series of treatments
The principle that says energy mist be absorbed by an object to produce an effect is
called? - Correct Ans-Grotthuss - Draper Law
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