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